Yes he is.
And Rex and Tanny are to blame for that. They get equal blame. Letting the talent on this team, mainly the offense, deteriorate to a level where we have to make impossible decisions. If the cap was the only problem I think we would be able to work things out. But we have a cap and talent problem. Too many holes to fill with no cap room to fill them. That is not all Tanny's fault.
I hope everyone that is upset about this realizes how much Rex is responsible.