I really like Cabral. A lot. He is a man of great integrity and commitment. I know he would love nothing more than to be CU's head coach.
But consider ---
Cabral joined CU's coaching staff as a graduate assistant in 1989, and was promoted to inside linebackers coach in 1990. He had 3 years prior experience as a linebackers coach at Purdue. When McCartney retired at the end of the 1994 season, Mike Hankwitz left as well (went to Kansas, I believe). Cabral was NOT promoted to defensive coordinator. Neuheisel hired AJ Christoff as Defensive Coordinator - but retained Cabral as LB coach.
When Neuheisel left in 1998, AJ Christoff left as well. Gary Barnett, who had been on the same staff as Cabral during the 1989-1990 seasons, did not promote Cabral to defensive coordinator. Instead, Barnett brought Vince Okruch with him to be his defensive coordinator. When Barnett was suspended in the spring of 2004, Cabral was promoted to interim head coach. Under significant pressure in his final season, Barnett fired Vince Okruch. He did not promote Brian Cabral to be defensive coordinator. Instead, he brought back Mike Hankwitz.
Upon his hiring, Dan Hawkins retained Cabral, but did not promote him. Instead, Hawkins brought Ron Collins, who had been his defensive coordinator at Boise.
Read into all that what you may, but Brian Cabral has either been seriously wronged for the past 20 years, or there is something about him that just turns off head coaches / administrators when it comes to promoting him. At the same time, I think there are some people who are just experts at what they do -- and I think Brian Cabral is one of those people. He is just an expert at coaching linebackers. It is what he does best, and sometimes I think that it is a good thing that he has stayed on in that capacity.
I would hope that the next coach keeps Cabral on his staff. I would hope Cabral continues to maintain the "Assistant Head Coach" title. I would hope that Cabral receives a very hefty raise (along with all the other coaches who CU hires/retains).