As far as which sport might be cut it will likely be either football or baseball. An additional question to ask is in what sports does the conference require participation ?
Obviously the Big West couldn't give a hoot about football. They've sent some mixed messages about baseball:
In the 90's into 2001 SAC State was an affiliate member for baseball. They were booted after the season with the official reason being that they didn't want affiliate members. However everybody knew it was because the Hornets were usually cellar- dwellers, and their abysmal records made the conference look weaker.
Prior to the Aggies' entry into the Big West the conference had members that did not have baseball programs. These were Idaho and Utah State. Also there were a couple of decades where UC Irvine did not have a baseball program. These schools were allowed to remain. Could it be because the credibility their men's basketball teams lent the conference outweighed the inconvenience of having to schedule additional non- conference games ?
When Bakersfield was making it's transition to D1 it was told by the Big West it had to have baseball to join. To its credit Bakersfield went out of its way to comply. It even funded and built its own stadium (with lights), rather than copping out and trying to do a time- sharing agreement with the Class A Bakersfield Blaze in 70+ year- old Sam Lynn Ballpark, where they can't play until the sun goes down because the park was built facing the wrong direction. They did all of this, and CSUB was still denied, until just recently.
I believe UCD will do everything it can to stay in the Big West. It not only saves on travel costs, but also limits how long the students have to be away from classes. Can you imagine the scheduling nightmares of the WAC/Big Sky ?
So let's say the Big West allows a non- baseball member again. Then it becomes a question of scholarships. Baseball has at most 11.7, probably less. Football has how many ? If there's a big scholarship imbalance it will either be football or baseball AND other sports. Men's golf would probably be on the chopping block too...possibly Men's water polo as well. It wpuldn't be just baseball. Cutting baseball would relieve some of the strain on the athletic budget, but it wouldn't resolve the Title IX issue on It's own.
Regardless of where that is going I think baseball will see cuts to balance the books. It won't be to the coaching staff, as I believe only Vaughn and Acosta are paid employees. They could see a reduction in games, especially home games. I don't know what the minimum # of games is, but you look at the Ivy League..most of those schools seem to play at least 10- 12 games less. Gonzaga hosts at most a handful of non- conference games. Lastly the school may flat out tell Vaughn he can only keep so many players, scholarship or not. I know the school probably doesn't pay travel expenses for some walk- on players, but there's more costs involved than that. I remember in 2014 SAC State only had 27 players on It's roster. Do you think Reggie Christiansen left 8 roster spots vacant because all the other players that tried out were terrible ? Think he would've liked to have had more than 1 reserve middle infielder ? It's clear the administration dictated those limits, and something similar will probably affect UCD as well.
It's difficult for me to envision the football team going anywhere, especially with the newish stadium and the fact that it brings in the most money per game of any of the sports, but is that revenue even that great ? I can't imagine they even come close to covering all the expenses. I see you guys talking a lot about empty seats, and there are only 5- 6 home games a year ? If there were no football, what would Aggie Stadium be used for ? I can only guess the soccer teams would use it + The field @Dobbins Baseball Complex would just be for practice.