Jean returned full-time to "The Simpsons" during the tenth season (1998–99). He once again became showrunner with the start of the thirteenth season in 2001, this time without Reiss. Jean called it "a great job with a lot of responsibility," and cited "the fact that people love it so much" as "great." He adds, however, that "the hardest thing at this point is just thinking of fresh ideas. People are so on top of things that we've done before, so the challenge now is to think of an idea that's good, but hasn't been seen." Jean's return was initially welcomed, with MSNBC's Jon Bonné stating: "Jean, who took the show's helm from executive producer Mike Scully in 2001, has guided the show away from its gag-heavy, Homer-centric incarnation...these are certainly brighter days for the show's long-time fans." However, some critics have argued that the quality of the show has declined in recent years during Jean's tenure. Jean has responded to this criticism by saying: "Well, it's possible that we've declined. But honestly, I've been here the whole time and I do remember in season two people saying, 'It's gone downhill.' If we'd listened to that then we would have stopped after episode 13. I'm glad we didn't."