The stars on any team are almost always clear. For the Indianapolis Colts, the quarterbacks are well-known, but the players who make the team go are ones like Michael Pittman and Jonathan Taylor. But the team could make a push toward the playoffs or not based on one specific position.
The guess is that, due to the Colts' good defense and excellent offensive line, Indy is going to play a lot of close games. A few might be one or lost by how well the kicker does late in games. This is not only obvious, but the position has to be held by someone who doesn't get the jitters.