How so? Heavily investing in a short period is the only way these teams can catch up with Man U et al, it's good for the Prem that there's more quality teams now, as long as they don't become too good. Man U have heavily invested as well, just over a longer period of time.

Besides, they've got 2 ex-Arsenal players, including a legend like Vieira! Maybe 3 with Sylvinho if he's still there...