The Colts have holes all over their roster right now. They still need help along the offensive line, at pass rush, inside linebacker, and could use more depth at a few other spots. GM Ryan Grigson hasn’t done much in free agency to fill these holes (largely because the finances say they can’t) and are likely waiting until the draft to address those issues.
Even if the Colts manage to miraculously solve all of those problems it won’t matter one bit if their quarterback doesn’t improve his game and stay healthy in 2016.
This version of the Colts is almost laughably reliant on Andrew Luck being a brilliant QB.