It's not about whether I think he is good or not. There are plenty of other top notch D-1 coaches who think he is pretty good. I cannot explain to you exactly why Rivals has him ranked at 2 and some others at 4, but there are plenty of reasons this happens as detailed below.
There is, and always has been, plenty of gaming of the rankings system. Players misreporting game stats which are not fact checked. Over reliance on camps which produce underwear all stars not football players (JMJ recruited plenty of those). Artificial bumps when commits start garnering interest from or commit to the Alabama's and Ohio State's of the world, thereby inflating their rankings and the team rankings commensurately.
I have said it before and will say it again. Just like the polls themselves, recruiting rankings are as much a beauty contest as reality. The are also a tool utilized by media, schools and fans to generate interest in programs and sell season tickets. Last year Juan Thornhill got drafted by the Chiefs in the 2nd round ... He was recruited by Mendenhall as a 2-star out of Altavista, VA.
I saw the same shit show at Virginia with Mike London who consistently brought in top talent but finished with bad records year in and year out, as we saw with JMJ at UCLA the last several years. Either they and/or Rivals missed on their evaluations, they do not know how to develop talent, strategy and in-game adjustments were not a strength, or all of the above.
But, recruiting rankings are no guarantee of success. The same folks on here who were whining about how Chad Morris at Arkansas was doing so much better because he had brought in better classes are nowhere to be found now with him getting fired 1.5 years in. Same with Willie Taggart at FSU. Manny Diaz had a wealth of talent to work with at Miami and a roster loaded with seniors, and they finished with just a couple wins better than CK.
Unless we know that the kid is not good, have watched his film, done an evaluation, I just don't understand how anyone can pass judgement on it one way or the other. There is enough evidence every season that there are plenty of misses both ways, up and down.