Byron Mullens isn’t so much a big man as he is a shooter. Josh McRoberts isn’t so much a big man as he is a passer. Wednesday in the second half against the Toronto Raptors, the Charlotte Bobcats embraced the unorthodox. Mullens and McRoberts paired as the primary frontcourt and that was good for a win. Mullens came off the bench for 25 points. McRoberts finished with 12 points, 12 rebounds and three assists. “(Defenses) can’t pack us in because both guys can hit shots,” coach Mike Dunlap said of playing McRoberts and Mullens together. With the season dwindling down to 14 games, Dunlap’s options are narrowing. Center Brendan Haywood is out the rest of the way after a magnetic resonance imaging revealed a stress reaction in Haywood’s left foot. Young center Bismack Biyombo figures to keep starting, but pairing McRoberts and Mullens shows some promise. They’re certainly unconventional together. Mullens can spot up along the 3-point line, as he did when he made three of four 3s against the Raptors. McRoberts is most effective as a high-post passer. The Bobcats had 53 assists in their past two games, and that’s not incidental to McRoberts swinging the ball.