6 Dallas Mavericks who are expendable, and 6 they can't afford to trade

11. Can't afford to trade: Derrick Jones Jr.

The Dallas Mavericks signed Derrick Jones Jr. to a veteran's minimum contract during free agency, and he quickly outplayed his contract since being a Maverick.

Jones Jr. is having the best season of his career as he is averaging 9.8 points, 3.6 rebounds, 1.0 assists, 0.6 steals, and 0.7 blocks per game while shooting over 41 percent from downtown. He has been one of Dallas' most consistent 3-point shooters, and his considerable improvement in this area has worked wonders for his game.

He always seems to get open corner threes, and he is shooting a career-high 4.3 3-pointers per game. These open looks and increased volume from downtown have helped him take his game to the next level.

Dallas can't afford to trade Jones Jr. because of his overall importance to the squad. The Mavs don't have many other 3-and-D wings on this roster, and Jones Jr. has been perfect in his role. He is exactly what the Mavs need, and he does exactly what they ask him to do.

He doesn't seem to care about his number of shot attempts or if he is in the starting lineup or not. Jones Jr. is a winner that brings his all on both ends of the floor.

It's not easy to strike gold with a veteran's minimum contract, and Dallas can't risk losing their starting small forward unless they land a much better replacement.