PITTSBURGH — For a brief second Thursday night, you had to wonder what was going through Matthew Stafford’s mind when the Rams used the 13th overall pick in the NFL draft to select Alabama quarterback Ty Simpson . After all, nothing truly explains your vocational expendability like the day your boss calls you into the office to introduce you to your replacement. Ouch. Los Angeles, Rams’ Matthew Stafford poses after winning the AP Most Valuable Player award during the NFL Honors award show, Thursday, Feb. 5, 2026, in San Francisco. (AP Photo/Matt York) AP No one is irreplaceable, not even Hall of Fame-caliber quarterbacks . It goes without saying that soon, a Rams staffer will remove Stafford’s name tag from his locker and replace it with someone else’s. Could be after next season or the one after that. Either way, it’s only a matter of time before the 38-year-old Stafford is no longer the Rams’ starting quarterback . The likely replacement for him is Simpson. That’s what the Rams hope, anyway.…