Zach Vigil is the Mountain West Conference defensive Player of the year and also racked up a ton of tackles and sacks to finish a great career at USU. He does have some questions about his speed. The speed drills including the 40 will be the key for him to prove that he can play in the League.
BJ Larsen is another draft hopeful that can impress with his strength and athleticism. I am actually expecting him to put up the most impressive numbers in this group.
Rashard Stewart played in the shadow of NFL Draftees like Will Davis and Nevin Lawson until this year. He stepped up and had a solid year. He will have a chance to do well and show he is the next DB to play in the NFL from Utah State. Also Safety Frankie Sutera will have to prove he is athletic and if he performs well could get a look.
Kevin Whimpey is a 3 yr starter at Tackle and I think Scouts will want to see that he can be a tough versatile Offensive Lineman that can play Guard or Tackle.
I could go through all of the guys and say the same thing but really that is what Pro day is for. They will go through drill and events just like the combine and that is a big part of how teams evaluate players to draft or sign as free agents.