The entire concept, I take it, is to get the Managers to leave the Starting Pitchers in the game longer. aka Snell, and I will add Maeda in this year's post season as well to the conversation. If your DH is Austin Meadows, I think that is who the Rays had DH'ing, who hit .205 for the season or Nelson Cruz who hit .303, which team is going to get penalized more for losing their DH in that scenario? Is the difference in the quality of the player that is DH'ing going to influence that decision? My guess is that Snell would have still gotten pulled but Maeda probably not. So, just using that example, would it be fair? It definitely implores a more difficult decision for Baldelli than it does for Cash. Are you then penalizing the Teams that have a good player at DH verses those that don't, forcing them to use their pitching staff differently or both?
Sure, I wouldn't expect a team to commit to a marginal DH. But I also like encouraging the use of bench players, platoons, etc. and this would help do that too. I'd add an extra position player roster spot if I did this rule.
And I'm in a gray area on the DH overall. I hate pitchers hitting, but I'm also not crazy about one-dimensional DHs either, so if this weakens their value, I'm not too upset. But, I'm hardly committed to the rule, it was more just a brainstorm.