The decisions over the next few months will likely shape the future of the Colts’ organization for years, but what happens next is anybody’s guess.

“There is no sugar-coating the fact that there are areas of talent that we need,” Irsay said. “The decisions that are coming up are crucial, and obviously, when you’re looking at a general manager, a head coach, having the No. 1 pick in the draft and knowing that you’re rebuilding in some areas, that is about as massive as it gets.”

As usual, all things in Indy start with Manning.

Irsay must decide whether to pay the four-time league MVP a $28 million bonus in March, allow him to walk away as a free agent or redo the five-year, $90 million contract to make it more salary-cap friendly.

Manning missed the entire season after having his latest neck surgery Sept. 8 — a procedure that has clouded his future in Indianapolis. Without him, the Colts collapsed, missing the playoffs for the first time in a decade and winning the Andrew Luck sweepstakes with a 2-14 mark.

Though Manning has started throwing with teammates and players believe Manning is improving, Irsay must determine whether it’s worth taking a significant cap hit to rebuild around a 35-year-old quarterback who has had neck surgery three times in less than 24 months. If he is healthy, a big if, Irsay has promised to bring back Manning and make another Super Bowl run.

“I think the key thing for me has always been, and particularly since the fusion, is it safe for him to go on the field? Is it something where he is healthy enough to resume his career, to go on the field and play at a high level but also to be in harm’s way in the physical game that we have?” Irsay said. “What he means to the franchise, what he means to the Colts and to the league, (his health) to me always has been the most important decision.”

Irsay said he plans to meet with Manning within the next week, and those answers could dictate which direction the Colts go in 2012.

Manning has good reasons to want Caldwell back. Aside from the franchise quarterback, Caldwell and offensive coordinator Clyde Christensen understand this offense better than anyone, and Caldwell helped Manning achieve his greatest successes. Before Caldwell became quarterbacks coach in 2002, Manning was an elite player with a losing record in the playoffs. With Caldwell, Manning won all four of his MVP awards, two AFC crowns and his only Super Bowl ring.

But there’s no assurance any of the coaches will be back next season. Receiver Pierre Garcon summed up the uncertainty best on Twitter when he posted this: “So what happens now?”

For Caldwell and the coaches, it’s business as usual.