Thought he was bought for his influence in the dressing room and nothing he did on the pitch has changed my mind.
Admittedly, we often needed Vieira, someone with a huge amount of experience to help see out a win or draw but he could never change a game and certainly couldn't comand a game for 90 mins. Yes, he was the only midfield player with ability to head a ball and did always force us forward instead of sidewards/backwards but fact is he wasn't as fast or fit as he used to be and he knew it.
Was he a good buy? For the reasons above he was perfect. If only for his part in both wembley games he was vital. But, I think it's time for us to let the team move up a level now without him or a replacement. Kompany can easily deal with dressing room and will definately be able to motivate the players, Barry/Milner have to learn to see out games and maybe Yaya can learn to head the ball (actually, after his goals at wembley, if His Royal Highness Sir Yaya of Etihad doesn't want to head the ball, he doesn't have to, we'll find someone else to head it for him).