Like most managers, SK did some good things and some bad things.
On the plus side, he figured out what KVV needed to be effective, turned Theo Bair around for a tidy sum, gave us Biereth for a few months, gave the youngsters a decent amount of playing time, and not all his signings were busts (Sparrow, Seddon, Maswanhise, Gordon, Koutroumbis, for example).
On the negative side, he never managed to sort out our basic lack of defending, struggled to find a plan B, struggled to find a goal scorer, and despite the many "internal reviews of the training regime" seemed to consistently crock our players on a regular basis.
I wasn't sad to see him leave, as he was running out of ideas - but no need to rewrite history.