A measured response - and it can't be easy for you coming on this board and reading the TN threads with our animosity on full display.
Specific to coaching - I think Holly is there for at least another year and maybe more, but if she is to turn this around I think she has to clean house with her assistants and find some young bright students of the game to work with her and teach her and the team how to play basketball. I honestly believe Pat knew she was being passed by for a number of years and was trying to change. Her force of will kept the team respectable even as the talent became more dispersed and the new coaches change the game. Holly? She doesn't have Pat's will, and I honestly don't think she has a very good basketball IQ nor very good personal skills, and I see no signs that she is a good 'teacher'. She is a classic worker bee type personality - point her in the right direction and tell her what to do and she will bust her ___ trying to accomplish it - ask her to come up with a creative plan to accomplish some goal and she will be lost. I suspect she has a notebook of how the first month of practice was run each year under Pat, and she does the exact same practice Pat ran on the exact same day - if this is the 10th day we work on high pick and rolls, and so they work on high pick and rolls. But Pat actual understood what she was seeing in practice and how to correct things - and I see no sign that Holly actually understands what she is seeing. The parts of games I have watched certainly suggest she doesn't understand what is happening on the floor - if player 'x' is supposed to be substituted out at the first stoppage after 4 minutes, then they are substituted out even if they have caught fire and nailed three threes in the last 2 minutes. And that goes beyond systems and coaching style to the heart of what a head coach needs to be.
Probably the greatest strength of both Geno and CD is their ability to see and understand what they are seeing down to the finest detail. They know when something is wrong long before it actually shows in results, and they then get in there and fix it. They understand what a good shot is and a good pass and it doesn't have anything to do with the ball going into the basket or the teammate catching it. It is why playing lots of easy games against AAC opponents doesn't hurt the team preparation, because they are never seduced by the score into thinking things are OK if they aren't.