Is Garrett's job next?

Dallas Cowboys owner Jerry Jones has stayed somewhat supportive of HC Jason Garrett throughout this offseason, though there have been some troubling developments -- Garrett's brother was allowed to explore other employment opportunities, and he wound up making a lateral move to the Tampa Bay Buccaneers, other coaches on Garrett's staff have been fired (such as DC Rob Ryan) and on Tuesday there was another occurrence that may be troubling to Garrett.