I have to admit to having some concerns about just renovating Coleman and lowering capacity to 10K.
First, I will admit 15K seems a little too big. The thing is, Alabama's attendance is and has actually been pretty good. They averaged almost 12K last year, which put them at 27th in attendance. Lowering the capacity below 12K would low Alabama's attendance right off the bat. I understand they're not Kentucky, so they can't expect or hope to have 20K+ attendance in any venue. However, Tennessee averaged 13.5K, Arkansas averaged 15. Alabama is 5th in the SEC in attendance. I'd like that number to go up and now down, and they can't do without around at least 13K capacity. If Alabama gets on track the demand for seats will increase. Remember, this program is vying for its rightful place as the second best program in the SEC.
That aside, it's hard to imagine a scenario in which they can make Coleman state of the art and not just be better off building a new facility. I'd have to see the plan and prices before I really form an opinion though.