Any team that tries to build a staff with that kind of system deserves to lose. You look to improve your club any way you can. If that means having 5 #3 caliber guys, then so be it. If those 5 guys put up the same WAR as a traditional #1 to #5 staff, you're fine (at least in terms of making the playoffs).
It would almost be like a team passing up on Votto in order to get someone like Dunn, Alvarez, or Trumbo because they want the extra home runs in the middle of their order.