Dean is frustrating, and has made mistakes that has cost us points, but our season isn't solely down to him. The players we have bought, and the general recruitment has been iffy. I know as a newly promoted club, it can be difficult to sign quality players, so you have to take risks. Problem with our signings was most were either too young and inexperienced, or just not good enough to begin with. Dean to his credit hasn't moaned about the players or the quality, and he has been willing to change up his tactics and set ups to try to accommodate these players' shortcomings. I mean look how many individual errors has cost us points. Even just half those errors gone, and we are 4 points clear of relegation. That is not on Dean entirely.
All in all, I don't want Dean gone just yet. If we get relegated, there is really no better manager for the championship that would actually be willing to join us. Let Dean see out the season. He gave us hope last season when we thought there was none. He deserves a full go at the league imo, and if we go down and can't get a bigger name to manage us, let Dean have half a season.