So what makes Doug Martin so great?

A guy who had six 1,000-yard rushing seasons and averaged a stunning 4.7 yards per carry though his career answered that question last week.

Joe’s talking about Tiki Barber. He and Martin chatted on CBS Sports Radio last week and Barber broke down what separates Martin.

“It’s balance, man. It’s going through contact,” Barber said. “It’s the hardest thing for running backs to understand is when you go through contact, it’s not, ‘I’m conceding to get tackled.’ Because a lot of guys do that. ‘Alright, I’m done.’ It’s picking a side, like picking an angle. When I got good and I got strong, it was, ‘I know you’re going to try to tackle me, but I’m going to take your shoulder.’ If I can get through your shoulder so you’re one-handing me, I’m running through that tackle. “And a lot of it’s because of your build. You’re like the old school. You know what I mean. There was a couple of guys back in the day, like Joe Morris was this way. His thighs were enormous. His ass was enormous. And that’s how you are.”

Martin, perhaps troubled by the giant ass comment, quickly added that running with a low center of gravity is key.

For those too young to remember, Joe Morris was a star running back for the Giants in the 1980s. The guy was 5-7, 195 pounds, but ran plenty between the tackles.

Barber also went on to compare Martin to three-time Pro Bowler Maurice Jones-Drew.

So will Martin return to the Bucs in 2016? If the Bucs and Martin can’t strike a deal this month, the deadline to slap the franchise tag on Martin is March 1.