Kelly Dwyer at Yahoo explains why Tom Thibodeau is the right pick for the Bulls:
Thibodeau, at the very least, has to restart a defensive mindset that hasn’t been in place since Scott Skiles flamed out as Chicago coach. The Bulls have the makeup to be a top five defensive team as is, but Derrick Rose has yet to improve defensively in his two years in this league, and the Bulls were pretty mediocre on that end under Del Negro. Lots of highs, lots of lows, quite average in the end.
The new coach has to change that. And if the rumors are true about Ron Adams (a former defensive whiz under Skiles) returning to Chicago after two seasons spent turning the Oklahoma City Thunder into all-world defenders despite their age, then the Bulls should be well on their way.