diff --git a/include/base.h b/include/base.h
index ac1642a..9412f15 100644
--- a/include/base.h
+++ b/include/base.h
@@ -62,13 +62,16 @@ struct {
 //
 // Local threads
 //
-struct {
-  int x;
-  int y;
-  int z;
+struct Center_t {
+    int x;
+    int y;
+    int z;
+
+    struct Center_t *next;
+    struct Center_t *prev;
 } typedef Center_t;
 
 struct {
-  pthread_t *id;
-  Center_t *localWorkAreaCenter;
+    pthread_t *id;
+    Center_t *localWorkAreaCenter;
 } typedef Thread_t;
diff --git a/src/scheduler.c b/src/scheduler.c
index 27156e8..184a219 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -38,6 +38,43 @@ pthread_t *SchedInit(SchedulerParams_t *parameters)
     return parameters->id;
 }
 
+// -------------------------------------------------------------------------- //
+// Center_t management functions                                              //
+// -------------------------------------------------------------------------- //
+static inline void centerAssign(Center_t *center, int x, int y, int z)
+{
+    center->x = x;
+    center->y = y;
+    center->z = z;
+}
+
+static inline Center_t *centerAdd(Center_t *anyCenter)
+{
+    Center_t *newCenter = (Center_t*) malloc(sizeof(Center_t));
+
+    Center_t *temp = anyCenter->next;
+    anyCenter->next = newCenter;
+    newCenter->next = temp;
+    newCenter->prev = anyCenter;
+
+    if (temp) {
+        temp->prev = newCenter;
+    }
+
+    return newCenter;
+}
+
+static inline void centerRemove(Center_t *oldCenter)
+{
+    Center_t *prev = oldCenter->prev;
+    Center_t *next = oldCenter->next;
+
+    prev->next = next->prev;
+    next->prev = prev->next;
+
+    free(oldCenter);
+}
+
 // -------------------------------------------------------------------------- //
 // Scheduler thread main function                                             //
 // -------------------------------------------------------------------------- //
@@ -45,11 +82,15 @@ static void *GreatScheduler(void *params)
 {
     // récupération des paramètres et annonce
     SchedulerParams_t *parameters = (SchedulerParams_t*) params;
-    printLog("Scheduler id %lu: I'm alive!\n", *(parameters->id));
+    printLog("Scheduler id %lu: Bonjour I'm the boss !\n", *(parameters->id));
 
     int ncpu = get_nprocs();
     printLog("%d CPUs available.\n", ncpu);
 
+    Thread_t *workerArray = (Thread_t*) malloc(sizeof(Thread_t) * 3 * ncpu);
+    Center_t *centersArray = (Center_t*) malloc(sizeof(Center_t));
+
+    centerAssign(centersArray, -1, -1, -1);
 
     return NULL;
 }