I've been paying less attention to the starting pitchers because of the way the game has evolved. Obviously when there's an "opener" that changes things but also, with very few exceptions, starters seem to be going fewer and fewer innings. I rarely bet a bad team with a good starter, e.g. Bumgarner. I haven't watched enough this year to know in detail, who's got a good bullpen and who doesn't, but by this time of the year, the better teams must have decent bullpens. I stick with good teams vs bad and follow series, regardless of who's starting. End up betting a lot of faves that way.
For example, AZ beat Philly at Philly last night. Philly is the better team, at home, I expect them to win this series, so I'm going Philly -130 tonight, despite Arrieta having a 1.43 WHIP. In previous years, I would rarely bet on a starter with a WHIP that high, even a seasoned, successful vet like Arrieta.
Similarly, I don't see a lousy team like LAA taking two from LAD, so I'm going LAD -160.
I also like TB -155. They were flying under the radar some but the lines have adjusted I think. Same with Min. Can't go Min tonight, odds are just too high at -190.