It seems as if I'm the only one who has noticed that Miami's o-line issues all started when Philbin brought his fancy, finesse, zone blocking schemes to Miami. Sparano's o-line did fine against the tough, physical d-lines of the Bills and Jets. However, Philbin's lines, with a bunch of the same guys, and several 1st round picks, were pushed around and consistently dominated by those tough d-lines. And, they gave up a lot of sacks, although some of those were Tannehill's fault.
After Philbin, Gase had pretty much the same guys for a while, and they were still somewhat bad against tough d-lines. The difference was that Gase's lines were a little better at pass-blocking than Philbin's lines, but they sucked at run blocking, especially in 3rd or 4th and short situations. And, Gase's o-lines consistently allowed defenders to make tackles in the backfield for a loss.
After Gase, Flores pretty much focused on defense and ignored the offense and o-line. During this time, Grier then drafted a QB with a major injury in 2020, and then built the worst o-line in the league to protect him in 2021. After Flores came McDaniel, who like Philbin, wanted complicated, fancy, finesse zone blocking schemes, and the issues with the o-line being pushed around and dominated by tough, physical d-lines has continued.
Personally I don't care if the rest of the league is running zone blocking; it just doesn't seem to work in Miami. I say go back to big, nasty, old-school maulers, and let the o-line do the dominating instead of getting dominated!