You are placing a whole lot of confidence in an early Rivals analysis. In my experience, these very early online analyses are almost never accurate with respect to the eventual outcome. It will be another 2 years before Boley signs. Reclassifications are almost solely a basketball phenomenon. When hs football players reclassify, it is usually (not always) backward, into the following class. There is an occasional forward reclassification in football, but it is very rare. Boley's recruitment is just beginning. At this point, he has reportedly received at least 7 SEC scholarship offers, and you can expect that number to increase. From Boley's own mouth, he likes Coach Coen and plans to visit UK, CO, MI, PA St, AL, GA, Clemson, and FL St. He will be at UK this weekend for the UK-KS basketball game.
The fact that Boley plays at a Lexington area hs is not a guarantee for UK, but it is a huge advantage. Walker Parks was the last time I can remember UK missing on a Lexington prospect Coach Marrow really wanted. Since then, Marrow has had an iron grip on Lexington. Coen's return to Lexington increases UK's advantage a lot. If Leary has a good season, that will look very good to Boley. It doesn't mean Boley will sign with UK, but you are making a huge leap by suggesting TN is the main threat. In fact, that is likely to be Clemson or FL St reading between the lines of what Boley himself has said. Boley's parents are huge UK fans. I'm sure they probably won't force the issue, but picking TN would not make the family happy.