What we would gain is more cap space in future years which might be attractive to a new coach given our current cap situation. In addition to a year to find out what you have in Rattler and better draft picks if he turns out to be bad.
I certainly get the idea that every year is sacred and you try to win as many games as possible and I'm more or less always thinking that way, but if you are a HC tasked with rebuilding a team it's possible that the best strategy is to take one step back so you can take two steps forward in the future.