I actually heard a recruiting "ANALyst" explain why it's a good measure.
Take MIZZ. They have averaged in the mid 30s right? It's clear they evaluated and developed the guys they recruited pretty well, and this year they had a break out year. Well, look at last year when they had some key injuries on the DL, OL, and lost a RB. Also, their QB wasn't that healthy. What am I trying to say? They didn't have a lot of depth. Now, you recruit in the top 10 according to the rankings or sign a lot of 4 and 5 star guys. You lose your starters to injuries, so you're back ups have to fill in. It's more likely 4 star backups will be able to fill in with not much of a drop off than a 3 or 2star guy. Especially in the SEC. That's the best answer I've heard yet. The stars can't rank heart, drive, work ethic, etc. and that's what the coaches have to decide on, but these recruiting sites can take film on a guy, and tell whether or not he's a gifted athlete. If he's a gifted athlete, he's probably going to be a 4 or 5star or a highly rated 3 star.
With all that said, it's not an exact science. I think Dan has done a good job recruiting and developing talent and find "diamonds in the rough." Being in MS, and mainly recruiting MS and surrounding rural states, guys are going to get over looked and probably not be ranked as high. Being able to RS can help fill the void of the star gap, and MSU and MIZZ have done a good job of that. The past two years we have signed good classes and true and RS FR have been hitting the field and playing well for us in key spots.
Bottom line, depth is where the star rankings will really take shape. I'll take a class of 18 ESPN 300 commits (Bama has this currently) than a class with 7 ESPN 300 and 15 3 stars any day. They both will be good classes and the two deep may not look that much different if the lower ranked class gets to RS a lot of guys and develop them to the highest degree. But if the lower rated class gets hit with injuries, guys might not be able to red shirt and develop before they are thrown into the fire. The odds are that class won't have the skill to fill players in without drop off in talent level.
What do you think?