I disagree on the striker front, reason being in big games you only get a handful of chances and more often than not those will fall to strikers. With a top striker who can finish you know there's a much better chance of him taking those chances that come his way in these games....the lesser striker have a tendency to blow those crucial game winning chances.
I do think we could use a tricky winger and tough tackling midfielder, but I also think we need a top class striker to finish off the chances. A new goalie would have been good too, Chesney showed last season he's not ready.