Colts owner Jim Irsay believes that Peyton Manning and a possible rookie quarterback could co-exist on the team's roster next season. Irsay, a constant Tweeter, opened up about the subject on his Twitter feed Sunday. "Yea I saw [USC quarterback Matt] Barkley n [Stanford QB Andrew] Luck last nite, and there's others with big time potential," Irsay tweeted. "but we want 18 back under center soon/18 now-2012Class future." Manning has missed the entire season following his third neck surgery in two years. Indianapolis is winless and in line to earn the first overall pick in April's 2012 NFL Draft. "It's very possible 18 back at full strength n we take future QB high in draft," Irsay wrote. "it's not necessarily 1 or the other...stay tuned4 wild ride!"