Remember when Doug Martin blew up on the Raiders in 2012? Remember how he hasn't done anything even remotely resembling the same sort of thing since then? If you own Martin, the chances you answered "yes" to question A are pretty high. The chances you answered "yes" to question B are probably pretty slim, though. Which is weird if you think about it, considering that Martin being an anchor on fantasy teams is a much more recent occurrence.
Don't expect that to change this week, as the Buccaneers are still bad, and they play the Panthers this week. The Panthers' defense may not be the world beating unit it was a couple years ago, but they're not bad by any stretch of the imagination.
Martin hasn't found the endzone at all this season, not even against the Titans, and the Titans let Frank Gore's aging corpse waltz in and out of their endzone like he owned the place last week. I don't know why you'd still be starting Martin in a lineup, and if you are, you're probably so committed to this course of action that nothing I say will dissuade you, but take him out of your lineup.
Martin had a great game in 2012, but it's 2015. We have iPhone 6s now. Martin was good back when we had iPhone 4s. That's practically prehistory. Might as well start Lucy the Australopithecus woman. Sure, she's fossilized now, but she was a terror in 10,000 B.C. Pro Bowl season, right there - she was shifty and quick and the woolly mammoths just couldn't keep up.