Sounds like it's 100% Kraft sticking it to Irsay for bitching about the Pats playing defense, then for deflate-gate. He is grossly overpaying for an OC, just to keep him from Indy.
Apparently he had already hired a staff and they we're already in the building. Colts planning to retain them, for a different HC, which really puts them at a disadvantage in hiring.