Not all QB's have to have a perfect throwing motion, but I think Buchner's mechanics negatively impact his throws and, as you mention, he has a problem with progressions...similar to Pyne

...my thoughts. They changed the offense to suit Pyne's abilities more, but the only thing I saw from Buckner was his running ability. I see them bringing in someone they want to start for a year or two from the portal. Someone to mentor the underclassmen and get them ready.