Our biggest problem in the last five years has been, without doubt, player recruitment. We have thrown our newfound wealth around like a fifteen year old virgin with a recent terminal diagnosis who just won the lottery and went to the nearest strip club.
Given that curing ongoing bad player recruitment from the last few windows naturally involves selling the dross and bringing in better players, we're gonna need a couple more transfer windows until the damage is undone. In the interim, we have to get these tune we can out of the orchestra we have. That brings us to the major immediate problem: pace and fitness (more specifically the lack thereof) in the squad. So much of what we want to achieve on the pitch is hampered by too many players being unable to physically perform at the levels dictated as necessary by the standard of the opposition we face each week.
How many times have we sat here after a match and said the opposition were gash but got the result because they physically outran or out-muscled us? Too many times. WAAAAY too many times.