It depends. If they joined in the last three years, then no. If they have been there for seven or eight years, I have to wonder a bit why they didn't leave yet. If they've been there for ten or more years, I'd have some serious doubts, because all the great people I know who used to work there all left about six to eight years ago and said that only the unemployable stayed behind.

That is of course not entirely true -- I have very talented friends who still work there. But I would be more cautious for sure.