It's keeping talent that is a bigger issue for Grier. As an aside, Miami is right around. 500 during Grier's time as GM. If you are what your record says, that's about average.
Although, to be fair, you do have to factor in the tear down and rebuild. Say what you will about Grier, but that strategy took courage.
I think most fans recognize that Miami is in a bit of a rebuild. Don't know if Ross would categorize it that way, but the Dolphins have needs at virtually every position.
In other words, the 2025 draft really matters for Miami.