Generally, the new hitting coach (not Big Papi) will go along with Cora, who probably holds the view of the current Astro's. They are aggressive and may appreciate the idea of launch angle associated with home run hitting, etc. Watching the big swingers on both the Astro's and the Dodgers, they tend to loop their swings to achieve the high launch angles. Their timing has to be nearly perfect and against front line pitching the runs have been hard to come by in some of the games. It seems to be an all or nothing approach, strikeout versus power hit.
I prefer Ted Williams old approach where during the swing, the bat maintained and angle that would describe the path of the ball as it naturally dropped. That way, the bat stays in the plane of the ball as it drops and the chances of making solid contact improve. I will like it if our batters get more aggressive but not if he go to these longer looping swings.