I'm guessing his source does more than just look at crystal ball predictions
Wigginton has been seen as an Oregon lean pretty much the whole time.
I think early on he was a CLEAR Oregon lean. In the last two months we picked up a TON of momentum. So much so Meyer and Halsted changed their picks to ISU and contributors to this website said they'd be extremely disappointed if Wigginton went elsewhere. He became an ISU "lean" for all intents and purposes.