He was beating out Z Marting at LT? I doubt that. Ronnie showed lots of promise, but IIRC his last offseason at ND was his only healthy one. Yeah scouts were intrigued by his potential on the field, but 2014 was his only tape at LT and he would've came out with questions on whether he could stay healthy or not. He was not a guaranteed 1st rounder, which is what you should be aiming at if you're an elite LT prospect.
I very much hope that Tosh is as good after 3 years as Ronnie was after 4, and if he's ready to be another 1st round Tackle for the Irish after 3 years, I'll be rooting for him.