I think the whole "Knight didn't recruit towards the end and the program went downhill" argument has been extremely exaggerated by Crean apologists and people who are upset with how Knight has held a grudge for so long. Here are Knight's last 5 recruiting classes:
1996: Guyton, Lewis, Collier, Jimenez
1997: Haston, Recker
1998: Fife, Hornsby, Odle
1999: Coverdale, Leach, Newton
2000: Jeffries, Moye, Owens, Roberts
He was still bringing in elite talent until the very end. Let's not forget those last 3 classes were a few different bounces away from winning a national title in 2002. The bottom line is that narrative is way oversold these days IMO.