I don't think you'll need to raise power while you're at home as I believe the game does that already. I like your idea of adjusting home and road though.
You cannot set a strategy to teach certain pitches. I know the Rockies current strategy when it comes to drafting/developing pitchers is looking for velocity. They tried getting sinkerballers in the past, but the ball just doesn't move at Coors like it does at other parks, so now they're thinking just get hard throwers and blow it by people.
For in-game pitching strategy, I would focus on staying low in the zone early in the at-bat, then expanding up and out when looking to put guys away. So get ahead with fastball/offspeed (primarily changeups I would say) low in the zone, then try to throw high velocity fastballs by guys up in the zone, or if they don't swing, use that as a set up for working below the zone and away with breaking pitches.