Going to have to say 11 wins or a playoff berth. Obviously, if they win 10 games but make the playoffs, Ross will be pleased.
To make the playoffs now adays you have to hit 11 wins or more, outside of the West divisions in both conferences. If we hit 10 wins but the Pats and Jets both have +12 wins, Ross will still not be pleased. Hit 11 wins and still not make it and only miss a playoff berth by a single game or tie breaker, then thats more of a statement.
With Houston, Baltimore, New York Jets, and San Diego(though lets face it, they will win their division, so lets say Kansas City) all taking aim at 2 wildcard berths this is not going to be a kind season to try and sneak in. At the end of the day, we will finish 2nd or 3rd in our division, so the win/loss record is not going to lose them their jobs as much as how close they are to the playoffs.