Kone - season over before he could get fully fit
Robles - hasn't played much but his presence has lead to Howard's best form at the club
Alcaraz - looked very good in the few games he's played
Barry - excellent signing and a potential free transfer in the summer
McCarthy - hardly put a foot wrong, potential future captain
Deulofeu - added a real threat to our attack. Missed him since he got injured
Lukaku - Scorekaku
McGeady - who knows, but gives us options at the very least
Signing players for Wigan is a different thing to signing them for Everton, and there's no reason to make a comparison. So far Martinez's success rate has been pretty impressive here. Pellegrini is probably the only other manager in the league who can say over 50% of his summer transfers have been a success.