5. Jevon Carter
Jevon Carter is another defensive-minded point guard that the Mavericks could consider bringing in to run their second unit.
Carter averaged eight points, 2.5 rebounds, 2.4 assists, and 0.8 steals per game as the backup point guard for a solid Bucks team last season. He also shot an excellent 42.1 percent from three. Carter can come in and play hard-nosed defense or score in bunches. He's an underrated guard, and Dallas could likely sign him for a discounted deal.
Carter had 36 points and 12 assists in a game this year against the Thunder and put on a show. He was hitting threes off the catch, firing accurate passes to his teammates all over the court, getting to the paint, finishing with layups through contact, and making floaters.
His offensive game is more complete than people give him credit for, and he'd be a suitable option for the Mavericks' second unit. Carter even can start, as he started in 39 games for the Bucks last season.
Carter has a player option this summer, and if he declines it, the Mavericks should pursue him. His ability to score effectively while being a great on-ball defender isn't easily found in a point guard. It's usually one or the other, and he can do both.