Bats clearly need to be integrated into more facets of play. I don't understand in baseball why you're not allowed to take your bat along the basepaths after you get a hit. You'll more than likely need it for protection and after all, it's your freaking bat! It belongs to you! Would you leave your AK-47 behind if you're a soldier heading into a war zone?
Fielders also deserve bats, which they could use to hit the ball back into the infield or engage in bat fencing during close plays at the bases. These changes will suffice until the year 2400 when robots replace humans and the Nintendo game "Base Wars" comes into being in reality.