All I said is that I'm not yet convinced that Napier is a good coach. He certainly might be. He was extremely successful at UL, otherwise Florida wouldn't have taken a chance on him.
My point is that, as it currently stands, his only claim to fame was the ability to perform well in the Sun Belt Conference. He's had effectively no success in the more challenging SEC. So if you define "good coach" as someone who can perform well in the Sun Belt, then yea, he's a great coach. However, if you define a "good coach" as someone who can perform well on a national stage, then he hasn't proven himself. Maybe he will prove himself in the future, but he hasn't done so yet. It's really simple.