Playing poorly is partly on the individual player, partly surrounding talent, partly on coaching. sadly, Fin fans have lived with all 3 for far too long. And Rosen played poorly. I doubt even his biggest supporters deny that. The debate seems to be attributing percentages to Rosen, players, coaches. I suspect our biggest disagreement is in the percentages.
My "direction" was based on "Stop using surrounding talent as an excuse." If surrounding talent isn't "an excuse," it isn't an "excuse" for any player, on any team, in any era. Again, I'm not arguing good or bad. There is no comparing any Miami QB (including Rosen) to Marino. The disagreement seems to be percentages. Playing poorly is a subset of 'not good enough.'