why would u announce ur moving to a 3-4? wouldn't keeping that under wraps help you against your opponent the next week? The only reason he mentioned it, is because they may be getting ready to make some serious personnel moves.
Rivera has been a very upfront guy with all of this. Does that have to do with his "rookieness" as a head coach? Maybe. But, he's been very open about the moves he's making.
He's honestly the antithesis of John Fox.