This was supposed to be one of the best position groups for the Colts going into the year, but it relied a lot on former All-Pro linebacker Shaq Leonard returning to at least some sort of his old form. That never materialized, Leonard was released mid-season and after being mediocre for the Eagles, and retirement is not entirely out of the question.
After him, Zaire Franklin and E.J. Speed had solid, yet unspectacular seasons. Franklin is a tackling machine who is all over the place, and Speed is quite similar to him in that regard only that he plays way more reckless ball, as evidenced by his amount of unnecessary penalties.