Is coach K a good coach? Of course. Best of all time? Not sure about that. I believe that its easy when you're on top. Its no coaching miracle that certain teams are always good. Coach K was almost fired before Laettner came upon the scene. Now, 20 years later, he turns guys away from his program that others would love to have. He has to put in limited effort in one huge area of the college game, recruiting. Guys flock to him, he doesnt have to go begging for them. Now this is where its dicey...do they flock because he's great, or is he great because they flock? I certainly dont look at him negatively, Im just not sure the crown fits quite right.
To display my craziness further, I feel the same way about Bilichick. He sucked with the Browns (save one season). He gets Brady, and the rest is history.
I guess my overall point is, all of these coaches know what they are doing, some just have better players.