Michigan cornerback DJ Waller Jr. was a surprise spring transfer portal entry. Kentucky quickly made a move on the Youngstown native and landed a commitment from Waller once the Big Ten transfer was a free agent. The expectation was that the former three-star recruit who played 120-plus defensive snaps as a true freshman for Michigan’s national championship team in 2023 would immediately compete for a starting position opposite Maxwell Hairston. Winning that starting position by Week 1 could prove to be difficult now. DJ Waller Jr. was a surprise absence in Kentucky’s first fall camp scrimmage…