The negativity is because what we are losing from is stuff you shouldn’t lose from at the college level. The stuff we lost from has nothing to do with “rebuilding” it’s all stuff that should be natural for a D1 baseball player.
Base running is something you should already know when you get to college. Catching an underhanded ball thrown to first is easy or throwing to first with two outs instead of trying to make a tag. Those are all things that don’t require “rebuilding.” You are literally always taught on 2 outs to get the lead runner or the easiest bag. You are never taught to make a tag because so many things can happen on a tag.
Those little things are frustrating and embarrassing if you want to be a “good” team you can’t make those mistakes. It’s fundamental baseball.