A day after announcing he'd miss the rest of the season with a heart infection, St. Louis Rams coach Mike Martz harshly criticized team management and said he didn't know if he could coexist with the team's president of football operations. Jay Zygmunt, the team's second-highest ranking official, stopped a representative for Martz at the door of the coaches' booth during Sunday's game against the Saints. The representative, team director of security Dan Linza, had been trying to bring a cell phone to offensive coordinator Steve Fairchild so Martz could talk to him from his home. Zygmunt brought Linza to team president John Shaw, who decided against having an "open phone line" in the booth. The confrontation brought to a head once again the team's front office power struggle. Martz has long been at odds with Zygmunt and general manager Charlie Armey, and he told radio station KSLG that he didn't know whether he and Zygmunt could coexist if he returned to coach the team next year. "That's a personal question that I'm not really prepared to answer," Martz said. "There is a lot of history there. From a business standpoint, yes. From a personal standpoint, I don't know. There have been just too many things that have happened."