Wouldn't an eight game improvement in over all record (14-19/22-11), rising from 13th to 6th in conference and a qualification for the field of 64, together with an improvement in defensive efficiency by around 100 spots (the list wasn't numbered I'm just too tired to count the exact order) constitute evidence of a significant improvement? Isn't substantial improvement in performance and outcome, with a team that still returns all five starters, itself evidence of good coaching by the existing staff?