[Old School Hound]

Played Lex Cath twice, not beat LC twice.

That's true. I still don't believe there is any empirical evidence that Corbin playing Lincoln instead of Lex Cath played much of a role in the outcome. The Corbin kids had played enough good teams to have them ready to win against Boyle.  Again, switch coaches and Corbin wins by at least a couple of scores, in my opinion. 
Has anyone watched the Cincinnati Bengals over the past year and a half ?  Despite their Head Coach that does his darndest sometimes to interfere with winning, they have a defensive coordinator by the name of Lou Anarumo who makes amazing adjustments on defense when things aren't going well. He is one of the best I've ever seen at making adjustments on the defensive side of the ball from one half to the next. Corbin's coaches did not do that , not against JC last season and not against Boyle this season.

Put your kids in the best position to maximize their success by making necessary adjustments. That's a big reason why Cinci advanced to the SB. Because Corbin's coaches didn't make those very obvious and needed adjustments is why they came up just short.