That's how it looks when you're trading Brandon Marshall and not signing either an equally talented or equally experienced replacement. The Dolphins will replace Marshall with a draft pick. You know how often rookie wide receiver make a big difference for their new teams? Do the homework. It is rare.
That's how it looks when you cut Yeremiah Bell, who was probably declining and too expensive but was also the glue in the deep secondary. The Dolphins may re-sign Bell or they may not. Either way, it is not a difference making move. Bell has so far garnered little attention in free agency so there's the idea other teams don't think tons about him so far. And if Miami goes in another direction, the likely way to address it is in the latter (cheaper) parts of free agency or, again, the draft. Rebuilding.
Eh, it is Armando, he does make a good point about rookie Wr's and replacing Marshall and MMoore and Garrard being on one year deals.
He is offbase about YB, and of course mixes his point "they cut YB, the glue that holds the secondary together" and "he has gotten no FA interest", our secondary has been crap since 2008's surprising season, big picture no great loss.
The other point is more pertinent, in this he is probably correct, the offense is rebuilding, we are unlikely to sign anyone to replace Marshall, if they could be found in the first place, and even then, we couldn't pay them much $$$.
To me, the real misstep with all of this is the roster was finally set up to be a power running-go deep down the field/good/defense/good specials team Parcells envisioned in 08, and now it will be deconstructed.