I don't think pitching is the problem. I think umpires and coaches are the problem. Most pitchers I know like to work fast but when they do the base coaches and umpires giving batters so much time to adjust and step out and try "slow things down" is the problem. Then the pitchers start taking their time getting on the rubber until the batter is through with all of their adjustments. The rules are clear to me already that the pitcher is supposed to set the pace, but the umpires are allowing batters and base coaches to set the pace. Last year, we called our pitches as soon as the catcher caught the ball and they were verbal so the catcher did not have to signal to the pitcher. The umpires still allowed batters to step out to slow the game.
Our pitchers reacted by staying off the rubber until the batter was set which slowed down the game tremendously. To change the rules, they also have to change the mindset of umpires and clarify the rules on batters trying to slow down the game. Under this new rule, will they also allow pitchers to pitch immediately when they receive the ball back from the catcher?
there needs to be a balance, I disagree with you that pitchers like to work fast, some do, others are human rain delays.
you want to speed up the game - stop all the mound conferences without a pitching change, stop the multiple pick off throws to 1st, the countless step offs no throws to 2nd, call a strike zone that is reasonable and not a shoe box, I think 15 seconds is a better amount of time...I personally would prefer 10 but not everyone works that fast.
if umps would call pitch at the belt or a hair higher a strike they wouldn't have to call the damn pitches 3 inches off the plate a strike! that would help immensely as well. the belt high pitch can be hard and will be swung at vs the outside one that will taken all night long until there are 2 strikes.