Ok... I forgot to mention one more thing. STOP THE ALPHA ROLL!!! More times than not when a dog shows alpha characteristics you do more damage doing this technique than in helping. Especially if you are are inexperienced in dog training.

You want to only use positive reinforcement such as the hand feeding and rewarding for desired behavior and ignoring undesired behavior instead of using the negative implications associated with the ALPHA ROLL. You will find that most experienced dog trainers who use positive training methods stay very far away from Alpha rolls.