The Indianapolis Colts are a team that is undergoing a drastic transition on both sides of the football in 2018. Assuming Andrew Luck returns to the field, and that he is able to get back into rhythm by the halfway point of the regular season, the offensive side of the ball will likely work itself into shape. The defensive side of the ball has more question-marks, primarily due to a defensive scheme change that requires new personnel. It is entirely unrealistic to expect that the Colts defense will make an immediate and smooth transition to the new scheme, particularly without the benefit for multiple off-seasons to address positional weaknesses — along with a general manager who is not interested in using free agency to address many of the issues until the chemistry in the locker room takes shape.