Also...
athleticdirector@uconn.edu. I posted this somewhere else but to reiterate - it's likely more effective to write a real letter and proofread as best you can, print it out on good quality paper with letterhead, sign it and send to :
Office of the Athletic Director
2095 Hillside Road Unit 1173,
Storrs, CT 06269
Some tips (feel free to add your own)... Make sure to spell Warde Manuel correctly, first of all... (heh). You might include "Dr." instead of Mr. if you address him in the body of the letter (I'm sure Dr. Gross wasn't the only AD with a PhD). If you are an alum, include your affiliation and graduating year... of course identify if you're a season ticket holder, how many years, etc., but also can mention if your friends / coworkers are less enthusiastic about the state of the program. If you have young kids, mention that you want them to be part of UConn culture at football games so they'll grow up being Husky fans and maybe tuition-paying students. I think it's good to include personal anecdotes to demonstrate what the program means to you, and what it does for UConn. That makes it more meaningful when you're saying that you're disappointed and are asking for a change in the coach. It's up to you if you want to make a demand (if _____ is still coaching I'll cancel my season tickets) or just express your disappointment. I think these folks know when teams lose, the fans are less enthusiastic and buy less tickets, less merchandise, and the brand name diminishes.