The phrase "a solid role" is correct and usable in written English.
It can be used to describe a position or function that is stable, reliable, or well-defined within a context, such as a job or a team.
Example: "In our project, she played a solid role in coordinating the efforts of the team and ensuring that deadlines were met."
Alternatives: "a strong position" or "a key function".
As a pro, he was a solid role player for the Knicks.
The first two find a solid role in negotiating arms-control agreements; the last, in most of its parts, is understandably less sympathetic to self-denying measures.
Jeremy Lin has been around for more than a few weeks, so let me state what should be obvious by now: with work, he will be a solid role player at best.
Hayden made some big plays in his six years as a Colt (he had the game-sealing pick-six in Super Bowl XLI), but overall, he was merely a solid role player.
Richardson played with the Knicks from 2005 to 2009, seasons in which he was a solid role player who could shoot 3-pointers and was one of the team's better defenders.
"He's a solid role player, I think it's just the distraction thing, that might the thing that's deterring teams," Williams told Ethan Sherwood Strauss of ESPN New York.
Others also praised the combat but considered the mechanics to be robust and elaborate, presenting a solid role-playing combat system concealed under the intentionally simplistic visuals.
The PlayStation version received a 7 out of 10 score from Hyper PlayStation magazine, remarking that although it contained lower quality visual effects and movie playback than the previous Saturn releases, it still remained a solid role-playing game.
"There are certainly jobs where only the largest machines are appropriate to use, so there's still a very solid role for traditional supercomputers," he said.
In ballpark terms, N.Y.U.'s moves had the appearance of a solid small-market team -- the St . Louis Cardinals say -- beefing up its roster to make a run at the pennant by adding a core of solid role players and a Hall of Fame pitcher in the prime of his career.
Trump admired Ali as a courageous fighter and solid role model of someone who was reviled but bounced back.
