Plus the fact that Crewe itself is a ****hole.
As for Steve Cotterill, yes, he did an excellent job with Cheltenham, taking them from the Dr Martens league to Division 2 in something like 6 seasons. However, he did NOT take Stoke from Division 2, he took over after they won promotion following the controversial sacking of Gudjon Thordarsson. After preaching loyalty and hard work after taking over, 2 wins and 14 games later he left for Sunderland

and everyone knows what a big success the Wilkinson/Cotterill partnership was up there!

From the brief time he was at Stoke, he didn't make much of an impression, whilst Tony Pulis managed to pull round a side bottom of Division 1 with no confidence to beat the drop.
Obviously Cheltenham fans will remember Cotterill with fondness, but it seems at the moment that lower leagues is his level.