The fabled "coverage" linebacker is almost as rare as the shutdown cornerback. No linebacker is going to be exceptionally great at coverage. Those that are often transition to Safety, or are converted Safetys themselves.
Mayo is easily the most athletic of the 3 linebackers, which makes his job a bit easier. He still isn't all that great in coverage, but then again, any linebacker in man coverage isn't going to be great.
Hightower and Spikes have shown to actually be pretty decent at coverage in zone, but you can't just say "our defense must play zone all the time." It's unrealistic.
Hightower was thrust into a new role for the first time in his career with the Patriots. He will improve. He has no choice. He was drafted in the 1st round and is projected to be a centerpiece of this defense.
Mayo is easily the most athletic of the 3 linebackers, which makes his job a bit easier. He still isn't all that great in coverage, but then again, any linebacker in man coverage isn't going to be great.
Hightower and Spikes have shown to actually be pretty decent at coverage in zone, but you can't just say "our defense must play zone all the time." It's unrealistic.
Hightower was thrust into a new role for the first time in his career with the Patriots. He will improve. He has no choice. He was drafted in the 1st round and is projected to be a centerpiece of this defense.