The former Gamecock is noted for his strong play recognition and pass anticipation. He's also known as a high-motor player that is able to sort through traffic to get into the backfield. He is a prime candidate for the Sam linebacker position with Dallas.
Here's his strength's write-up on him from NFL.com
Versatile defender with a strong overall build. Plays over the tight end, in the slot, in the stack. Long, thick arms make him a secure tackler once latching on, brings pop to his stops whether in the open field or backfield. Moves well laterally. Takes on blocks in the open field extremely well. Locks out arms, and anchors in. Showcases violent hands in ripping off blocks. Stands his ground, or lowers a shoulder against pulling guards and tight end blocks on the edge, providing containment. Offers strength and speed as a blitzer. Former safety shows some agility to stay with tight ends and some receivers off the line. Shows some hustle across the field and chasing plays from behind. Take advantage of poor throws to secure interceptions with his hands, looking the ball in even if it's away from his frame.
Checking in at 6'2" and 243 lbs, Holloman has a thick, athletic build and certainly looks the part of a linebacker. He actually was a former strong safety that moved down to the front seven as a "Spur" linebacker as he matured physically. That position is a hybrid of the two responsibilities.
At the combine, he only ran a 4.76 40 time, but was a top performer in the Short Shuttle, ranking 5th of all of the linebacker prospects.
Holloman does have a blemish on his record under character concern, being arrested and charged with DUI in 2011. He was suspended by the team for it.