1. He is not a lone striker
2. I just want to see more effort from him. Today, around the 75th minute mark and it was picked up in commentary, VDS did a long throw out and Park raced upfield with the ball. Now, when VDS first threw the ball, Berbatov was on the halfway line and the highest United player up the pitch. By the time Park got to the box, Diouf had also got in front and Berbatov was now the deepest United player in the attacking half. What made it bad was that on replay, he was only AMBLING up, no effort whatsoever to get there.
Compare that to Rooney a few weeks back against Arsenal, busting a gut to get in. That tells the difference. Rooney has more energy than most I admit, but even so, Berbatov should have been working far harder to get there.
For me, Berba will never make it at United. He's got the ability and skill, but we don't play at his pace, so he will always be off it and we'll never see the best of him.