As a club who did fuck all in the 80's (bar win the 1st division) Motherwell hark to Scottish and League cup semi final defeats as being highs, Wycombe were within 90 minutes of an FA Cup final by the same logic you provide for Gary Mac.
I am not a Sanchez fanboy, I'm only making a counterpoint to the shreiking Fulham fan by pointing out the view of more than one Sligo fan's view of yer man Sanchez. Any manager we get is going to be an unknown quantity, but Calderwood would be the daftest appointment since the dentist's at midnight.