Unprecedented goal and assistant/co-showrunner
If I were showrunner, I would challenge the writers to achieve a near-impossible goal. I heard once that the writers during season 4 were motivated to win the Emmy for Outstanding Comedy Series (not the less prestigious Creative Arts Emmy for Outstanding Animation that "The Simpsons" has won many times before). It was and is literally unheard of for an animated program to win the Outstanding Comedy Series Emmy, as no animated program has won it to this day. Knowing they were underdogs, season 4's writers, directors, animators, cast and crew (or so I believe) toiled to create the best damn season in the history of television and shove the TV Establishment's outmoded conception of "cartoons'" potential in their ugly NBC-bought faces. Ultimately, they were unsuccessful in winning the Outstanding Comedy Series Emmy but (IMHO) they were extremely successful in developing the best damn season in the history of television (and yes, I'm factoring "Seinfeld's" '92-'93 season, which won the Emmy for Outstanding Comedy Series that year, into the equation). Bear in mind that I could have the show's history all wrong (I didn't research this post in the least), but it would make sense for the writers to try extra hard (and be excited about trying extra hard) if they were challenged to accomplish a seemingly impossible feat directly related to the show's quality.
Anyway, if I were showrunner, I'd accept the contract only on the condition that "The Simpsons" be nominated for Outstanding Comedy Series instead of Outstanding Animation. I'd tell the writers, cast, crew, animators (well, their English-Korean translators), etc that they absolutely must achieve this goal (not under threat of any sort of penalty, but I'd make my expectations unequivocally known). I'd tell the writers and directors in particular to get excited about breaking new ground and revv them up to create the best season in the show's history and television history's history (as that would probably be required to overcome what might be a bias against animated shows winning the award). In addition to the normal writers' room schedule, I'd schedule regular conferences, retreats, etc, where we'd just sit around and talk about where we want to take the show during the pending season. It would be a fun atmosphere, assuming the writers et al were passionate, energetic and brimming with ideas. If some were not (and I'm pretty sure a number of current writers are beyond burning out), it would be easy to separate them from the herd, given the packed schedule. (Just to be clear, I'm pretty sure "The Simpsons" wouldn't win no matter how good the season was, but shoot for the moon and land among the stars and all that crap).
Also, I'd probably hire an assistant showrunner or a co-showrunner. This would allow one of us to work almost exclusively with the writers and network to chart a course for the season while the other one of us handled the production details. I think it's no coincidence that seasons considered to be the show's best had more than one showrunner.
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PS - I tried responding to several of your replies to my "Biggest Disappointment" post, but my response didn't upload. Please accept my apologies