diff --git a/planetstack/core/models/slice.py b/planetstack/core/models/slice.py
index d6908a7..da9379d 100644
--- a/planetstack/core/models/slice.py
+++ b/planetstack/core/models/slice.py
@@ -22,6 +22,7 @@
     subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
 
     serviceClass = models.ForeignKey(ServiceClass, related_name = "slices", null=True, default=ServiceClass.get_default)
+    creator = models.ForeignKey(User, related_name='slices', blank=True, null=True)
 
     def __unicode__(self):  return u'%s' % (self.name)
 
@@ -31,6 +32,8 @@
             # will fail unless it is allowed. But, we we really don't want it to
             # ever save None, so fix it up here.
             self.serviceClass = ServiceClass.get_default()
+        if not self.creator and hasattr(self, 'caller'):
+            self.creator = self.caller
         super(Slice, self).save(*args, **kwds)
 
 class SliceMembership(PlCoreBase):
diff --git a/planetstack/core/models/sliver.py b/planetstack/core/models/sliver.py
index 72ad66d..13eb353 100644
--- a/planetstack/core/models/sliver.py
+++ b/planetstack/core/models/sliver.py
@@ -29,15 +29,6 @@
     def save(self, *args, **kwds):
         if not self.name:
             self.name = self.slice.name
-        if not hasattr(self, 'os_manager'):
-            from openstack.manager import OpenStackManager
-            setattr(self, 'os_manager', OpenStackManager())
-        self.os_manager.save_sliver(self)
+        if not self.creator and hasattr(self, 'caller'):
+            self.creator = self.caller
         super(Sliver, self).save(*args, **kwds)
-
-    def delete(self, *args, **kwds):
-        if not hasattr(self, 'os_manager'):
-            from openstack.manager import OpenStackManager
-            setattr(self, 'os_manager', OpenStackManager())
-        self.os_manager.delete_sliver(self)
-        super(Sliver, self).delete(*args, **kwds)