diff --git a/src/main/java/fr/lirmm/aren/model/User.java b/src/main/java/fr/lirmm/aren/model/User.java
index e0312a7..f432622 100644
--- a/src/main/java/fr/lirmm/aren/model/User.java
+++ b/src/main/java/fr/lirmm/aren/model/User.java
@@ -137,15 +137,6 @@ public class User extends AbstractEntEntity implements Serializable {
     @SortNatural
     private SortedSet<Team> teams = new TreeSet<>();
 
-    @JoinTable(name = "vm_teams_users",
-            joinColumns = {
-                    @JoinColumn(name = "user_id", referencedColumnName = "id")},
-            inverseJoinColumns = {
-                    @JoinColumn(name = "team_id", referencedColumnName = "id")})
-    @ManyToMany
-    @SortNatural
-    private SortedSet<VMTeam> vmTeams = new TreeSet<>();
-
     @OneToMany(mappedBy = "owner")
     @SortNatural
     private SortedSet<Notification> notifications = new TreeSet<>();
@@ -383,40 +374,6 @@ public class User extends AbstractEntEntity implements Serializable {
         team.getUsers().remove(this);
     }
 
-    /**
-     *
-     * @return
-     */
-    public SortedSet<VMTeam> getVmTeams() {
-        return vmTeams;
-    }
-
-    /**
-     *
-     * @param vmTeams
-     */
-    public void setVmTeams(SortedSet<VMTeam> vmTeams) {
-        this.vmTeams = vmTeams;
-    }
-
-    /**
-     *
-     * @param team
-     */
-    public void addMember(VMTeam team) {
-        vmTeams.add(team);
-        team.getMembers().add(this);
-    }
-
-    /**
-     *
-     * @param team
-     */
-    public void removeMember(VMTeam team) {
-        vmTeams.remove(team);
-        team.getMembers().remove(this);
-    }
-
     /**
      *
      * @return
diff --git a/src/main/java/fr/lirmm/aren/model/vm/VMChoice.java b/src/main/java/fr/lirmm/aren/model/vm/VMChoice.java
index 5f6e92e..7cd1486 100644
--- a/src/main/java/fr/lirmm/aren/model/vm/VMChoice.java
+++ b/src/main/java/fr/lirmm/aren/model/vm/VMChoice.java
@@ -1,6 +1,8 @@
 package fr.lirmm.aren.model.vm;
 
 import com.fasterxml.jackson.annotation.JsonIdentityInfo;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.ObjectIdGenerators;
 import fr.lirmm.aren.model.AbstractEntity;
 import org.hibernate.annotations.SortNatural;
@@ -73,6 +75,10 @@ public class VMChoice extends AbstractEntity implements Serializable {
     @SortNatural
     private SortedSet<VMVote> votes = new TreeSet<>();
 
+    @Transient
+    @JsonProperty
+    private int rank ;
+
     /**
      *
      * @return
@@ -297,6 +303,22 @@ public class VMChoice extends AbstractEntity implements Serializable {
         this.votes = votes;
     }
 
+    /**
+     *
+     * @return
+     */
+    public int getRank() {
+        return rank;
+    }
+
+    /**
+     *
+     * @param rank
+     */
+    public void setRank(int rank) {
+        this.rank = rank;
+    }
+
     public boolean isVoted(){
         if(this.getRejected()!=0 ||
                 this.getInsufficient()!=0 ||
diff --git a/src/main/java/fr/lirmm/aren/model/vm/VMTeam.java b/src/main/java/fr/lirmm/aren/model/vm/VMTeam.java
index 4a58ace..f09bca2 100644
--- a/src/main/java/fr/lirmm/aren/model/vm/VMTeam.java
+++ b/src/main/java/fr/lirmm/aren/model/vm/VMTeam.java
@@ -10,8 +10,6 @@ import org.hibernate.annotations.Where;
 import javax.persistence.*;
 import javax.validation.constraints.Size;
 import java.io.Serializable;
-import java.util.SortedSet;
-import java.util.TreeSet;
 
 /**
  * @author ANDRIAMBOLAHARIMIHANTA Havana on 11/07/2021
@@ -25,10 +23,6 @@ public class VMTeam extends AbstractEntity implements Serializable {
     @Column(name = "name")
     private String name;
 
-    @ManyToMany(mappedBy = "vmTeams")
-    @SortNatural
-    private SortedSet<User> members = new TreeSet<>();
-
     /**
      *
      * @return
@@ -44,38 +38,4 @@ public class VMTeam extends AbstractEntity implements Serializable {
     public void setName(String name) {
         this.name = name;
     }
-
-    /**
-     *
-     * @return
-     */
-    public SortedSet<User> getMembers() {
-        return members;
-    }
-
-    /**
-     *
-     * @param members
-     */
-    public void setMembers(SortedSet<User> members) {
-        this.members = members;
-    }
-
-    /**
-     *
-     * @param user
-     */
-    public void addUser(User user) {
-        this.members.add(user);
-        user.getVmTeams().add(this);
-    }
-
-    /**
-     *
-     * @param user
-     */
-    public void removeUser(User user) {
-        this.members.remove(user);
-        user.getVmTeams().remove(this);
-    }
 }
\ No newline at end of file
diff --git a/src/main/java/fr/lirmm/aren/model/vm/VMTheme.java b/src/main/java/fr/lirmm/aren/model/vm/VMTheme.java
index e01973b..a303aa0 100644
--- a/src/main/java/fr/lirmm/aren/model/vm/VMTheme.java
+++ b/src/main/java/fr/lirmm/aren/model/vm/VMTheme.java
@@ -11,6 +11,7 @@ import javax.persistence.*;
 import javax.validation.constraints.Size;
 import java.io.Serializable;
 import java.time.ZonedDateTime;
+import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.Set;
 
@@ -50,7 +51,7 @@ public class VMTheme extends AbstractEntity implements Serializable {
     private ZonedDateTime expiracyDate;
 
     @OneToMany(mappedBy = "themeId")
-    private Set<VMChoice> choices = new LinkedHashSet<>();
+    private Set<VMChoice> choices = new HashSet<>();
 
     /**
      *
diff --git a/src/main/java/fr/lirmm/aren/service/vm/VMTeamService.java b/src/main/java/fr/lirmm/aren/service/vm/VMTeamService.java
index 732a132..b6a983c 100644
--- a/src/main/java/fr/lirmm/aren/service/vm/VMTeamService.java
+++ b/src/main/java/fr/lirmm/aren/service/vm/VMTeamService.java
@@ -79,16 +79,4 @@ public class VMTeamService extends AbstractService<VMTeam> {
         }
         return teams.get(0);
     }
-
-    public void updateExternaleTables(VMTeam team) {
-        super.transactionBegin();
-        team.getMembers().forEach(member->{
-            System.out.println(team.getId()+" --- "+member.getId());
-            getEntityManager().createNativeQuery("INSERT INTO vm_teams_users(vmteam_id,members_id) VALUES(?,?) ")
-                    .setParameter(1, team.getId())
-                    .setParameter(2, member.getId())
-                    .executeUpdate();
-            super.commit();
-        });
-    }
 }
diff --git a/src/main/java/fr/lirmm/aren/ws/rest/VMTeamRESTFacade.java b/src/main/java/fr/lirmm/aren/ws/rest/VMTeamRESTFacade.java
index 04af0ad..3c20152 100644
--- a/src/main/java/fr/lirmm/aren/ws/rest/VMTeamRESTFacade.java
+++ b/src/main/java/fr/lirmm/aren/ws/rest/VMTeamRESTFacade.java
@@ -46,12 +46,7 @@ public class VMTeamRESTFacade extends AbstractRESTFacade<VMTeam>{
     @Override
     @PermitAll
     public VMTeam create(VMTeam team){
-        SortedSet<User> members=team.getMembers() ;
         VMTeam teamRes= teamService.insert(team) ;
-        members.forEach(member->{
-            teamRes.addUser(userService.getReference(member.getId()));
-            teamService.edit(teamRes);
-        });
         return teamRes ;
     }
 
diff --git a/src/main/java/fr/lirmm/aren/ws/rest/VMThemeRESTFacade.java b/src/main/java/fr/lirmm/aren/ws/rest/VMThemeRESTFacade.java
index 57bbba6..3f84c24 100644
--- a/src/main/java/fr/lirmm/aren/ws/rest/VMThemeRESTFacade.java
+++ b/src/main/java/fr/lirmm/aren/ws/rest/VMThemeRESTFacade.java
@@ -119,16 +119,20 @@ public class VMThemeRESTFacade extends AbstractRESTFacade<VMTheme>{
 
             int index=0 ;
             for(ProposalResultInterface item : result.getProposalResults()){
-                newChoices[item.getRank()-1]=(VMChoice) choices[index] ;
+                VMChoice vmChoice=(VMChoice) choices[index] ;
+                vmChoice.setRank(item.getRank());
+                newChoices[item.getRank()-1]=vmChoice ;
                 System.out.println(item.getRank()+" - "+newChoices[item.getRank()-1].getTitle());
                 index++ ;
             }
         }
 
         for(int i=0 ; i<choicesNotVoted.size() ; i++){
-            newChoices[newChoices.length-(i+1)]= choicesNotVoted.get(i) ;
+            VMChoice vmChoice=choicesNotVoted.get(i) ;
+            vmChoice.setRank(newChoices.length-i);
+            newChoices[newChoices.length-(i+1)]= vmChoice ;
         }
-        LinkedHashSet<VMChoice> setChoices = new LinkedHashSet<>();
+        HashSet<VMChoice> setChoices = new HashSet<>();
         System.out.println("Rang : ") ;
         for(int i=0 ; i<newChoices.length ; i++){
             System.out.println(i+" - "+newChoices[i].getTitle());