Maybe they've recognized that 1 ace isn't winning them a world series regardless of payroll. Maybe they've used their level heads to understand they have some good high level prospects and hanging on to them isn't a bad move. Maybe they also know that they can fire sell the core team and rebuild around their young studs in the event of an utter failure in late September. That standing pat has equal chances of success at this stage in the many trade proposals that center around Stroman.