Gordon Greer has been called slow , and not worthy of his place on NSC for years. In fact the centre piece of one of the best defences in the Championship (even last year) for the last 5 years and has never received the accolades of Bruno, Upson, or even Dunk.
Keith Andrews was either ignored or dismissed in 2013/14 but his 30+ appearances were key to the play off team .
Ashley Barnes was under rated whilst at the Albion to a certain extent. But like most players who leave and go on to even modest success is now overrated (see also Steve Cook, Tommy Elphick )
Tommy Elphick completely written off by a vocal minority here, back in the day.
How about Andy Crosby? tough centre half, decent footballer and left us as his lack of pace and age were by all accounts counting against him. A couple of seasons later whilst we laboured in Div1, Andy was player coach in the Championship.