I don't think anyone is suggesting giving Houser away, but eventually space limitations do come into play no matter how much we don't want to lose guys. Figure on a max of 13 open day pitchers. Figure Chacin, Burnes, Hader, Jeffress, Knebel are all locks, that leaves you with 8. Figure on just one of Anderson and Davies, and three of Jennings, Cedeno, Williams, Barnes or Albers, that leaves you with 5. Figure that 2 of Woodruff, Guerra and Peralta are going to make it leaves you with 3 spots, and way more candidates than that to fill them. And that's only 3 if they don't keep more of the aforementioned players, they don't bring back Soria, and they add nothing in free agency. Yes, you do need 9 or 10 SPs to get through a season, but that's more of an argument against Houser, not for him, because he can't be optioned and they typically like to preserve flexibility with those last few spots. How many young (0-3 year service time) pitchers with no options remaining made the roster last season?