15-10 is with one week of Hader and one start from Brown. Going forward Astros need decent health and a 90 OPS+ from 7th-9th. Lope can reach 100 (or better) and Espada should try Meyers 9th.
Honestly kind of liked Altuve going back to the leadoff spot. IMO having Pena and Paredes behind Yordan gives you the best chance to punish teams for pitching around Yordan.