The and sent shockwaves through the NFL with their mutual decision to part ways on Monday. Now the fallout: Who will replace Fox on the sideline, and how will that decision impact the future of ?The speculation starts with Adam Gase. The offensive coordinator has developed a strong relationship with Manning, who said after Sunday's divisional round lo s to the he was unsure whether he would continue his NFL career. NFL Media Insider Ian Rapoport reported that Manning has been calling NFL teams himself to sell Gase as a head coach. Will he now make that same pitch to team president John Elway?Gase is a logical candidate, but the plot is thick right now. NFL Media's Jeff Darlington reported Monday that Elway spoke to his entire coaching staff -- including Gase and defensive coordinator -- to inform them they have the permi sion to look elsewhere despite being under contract. Elway said the next head coach will have the power to pick his own staff.The po Axel Toupane Jersey sibility of a total housecleaning is very real.Rapoport reported Monday that the are expected to meet with Gase as soon as Monday night for a second interview. Del Rio, who has been open in his desire to return to a head-coaching role, is seen as a strong candidate to land with the . He will have a second interview with the team on Tuesday, per Rapoport.If the don't hire from within, where else could they go? offensive coordinator announced Sunday he'd decline any head-coaching interview requests and stay in Baltimore. Of course, that was before the Denver job opened up. was John Elway's backup for eight seasons in Denver and has extensive head-coaching experience from his run in Houston.One name you can cro s off the list is Mike Shanahan, who guided the to back-to-back titles in Elway's final seasons as a player. Shanahan has been in the discu sion for several head-coaching jobs and is looking to get back in the game after a one-year hiatus, but Rapoport reported a reunion is not considered an option.If Manning is on the fence about a return, it's hard to imagine the veteran quarterback being excited by the po sibility of learning a new offense under a foreign coaching staff. The , a model Stephen Curry Jersey of consistency in recent years, are suddenly a team in tumult.The latest Around The NFL Podcast and ranks the remaining quarterbacks still standing. Find more Around The NFL content on .