First and foremost we would have to strip buffalo from the top down to get back to peak performance from when they once were. Lee out would be the first decision to fix the buffalo herd and tomen would easily step up to plate and run the whole team (lets be real he does this already). Second buffalo would need to drop each and every single animal from their roster, starting with their star studded captain and life long member monkey d. luffy. Fish is dead, monkey gone, and the hippo gets the boot. They already lost the otter and eventually the roster would be fixed through meaningful draft picks. Hair would be the next captain since the monkey would finally be off buffalos shoulder, and perma drunk jaska would finally maybe be able to hit the net if he could put down the booze. Evok and ragnar would have to brawl it out for starting position in this new iteration of the wild wild buffalo herd.