I disagree mate. We have Fabregas. You don't get a player of much higher quality than that.
We could, of course, use a star forward and van Persie looked like he could play be the one at the beginning of last season, but eventually it still came down to the usual things:
a. we don't have enough quality in key areas of the pitch
b. we can't keep our key players fit/the backups aren't good enough