Yeees... but surely the point of us buying in players like Fernandes and Pienaar, as well as keeping Ossie, Arteta, Cahill and also having four strikers as we do is so that we can have 6 strong outfield subs. Let's take it hypothetically...
First XI for us:
Howard
Neville Yobo Lescott Baines
Arteta Fernandes Ossie Pienaar
Aj Yak
Then, with this new option, our bench would go from this:
Wessels
Jagielka
Cahill
Vaughan
Anichebe
TO THIS:
Wessels
Jagielka
Hibbert
Carsley
Cahill
Vaughan
Anichebe
....so more flexibility. Also, with injuries - and international football - we could then still put in Valente, Gardner, Gosling, Jutkiewicz and the various other youngsters (as in Gos and Lucas) including Rodwell, Irving etc...
It doesn't matter what players other teams have, as we have proven under Moyes by beating each of the so-called top four at some point or another.