You know you really don't have to play devil's advocate or be the contrarian on every single post. Also the 2 SP is such a reach. Teheran is only in the rotation because of injuries. If Brewers kept Woodruff and Burnes they would have Burnes, Woodruff, Peralta, Ashby, Houser, Rea, Gasser as the 7 deep for the starting rotation.
Also the names I listed have combined for -0.9 fWAR this year in that roughly $43M worth of salary, so no it would not be very difficult to replace those names.