For folks suggesting wrestling, hockey, etc. over baseball, there is an added problem with those sports compared to baseball. For each men's sport that would be added, you'd need to add a women's sport with an equal number of scholarships. In that way baseball has a leg up, because if you build the facilities for baseball then it's (relatively) inexpensive to add softball.
In my estimation, softball is the next women's sport that CU could reasonably offer. Here are the major (discounting bowling, fencing, rowing, rifle) NCAA-recognized programs where CU does not have a women's team:
- Softball (requires facilities, and 12 scholarships)
- Hockey (requires facilities and 18 scholarships. Also, there are only 35 programs in the country right now, no Pac 12 programs, and only 4 west of the Mississippi, 3 of which are in Minnesota. Figuring out travel/schedule would be a huge pain)
- Beach Volleyball (requires facilities and 3 scholarships- is it realistic in Colorado?)
So, if you wanted to add Men's hockey, you'd also have to reasonably add women's hockey. This is 12 more scholarships per year than baseball/softball.