Ledesma can work in all of the possible formations: 4-4-2,4-3-2-1,4-2-3-1,4-3-1-2 and finally 4-5-1. So I see no point in waiting for a new coach to note that we need a passing player in other words a regista.
In case you didn't notice, we always suffer from fatigue and injuries and this will only get worse with us playing Europa League games on Thursday. So We need good back-ups.
We don't have the cash to invest. Thats it.