Ok, Im biased as I'm McCarthy's biggest fan outside of Wigan. IMO he has it all, physique, good passing range, equal at home as DM or box-to-box, good at getting the ball away from the opposition without committing a foul, great engine.
I would swap him for Fellaini in a heart-beat. Fella is Unique no doubt about it, but not the box-to-box midfielder I want him to be. For £24 m. we could get McCarthy and still have over £10 m. left to put towards another forward like Moses.
Don't give me the crap about signing to many Wigan players, if in a squad of 35 players 5 of them have ties to Wigan so what, if you're good enough then I don't care where we got you from. We all know that Kone is better than what we had up front, Alcaraz a different type of passing defender to all other cfs at the club. Joel could be De Gea Mark II and will provide TH with competition for the first time since he joined from Man Utd.
Most fans agree that Baines is our best player and remember where he came from. Signing the good players from the relegated clubs is a solid strategy that has worked before for us.
Also those saying that you should not sell your best players are living in a dream world, it's only the PSGs, Real Madrids, Barcelona and Bayern Munich of this world that don't sell their best players. Every club with only a handful of exceptions is a feeder club to another higher on the food chain.