The Pirates can't seem to get any momentum in the win column, what rules would you change in the 4 major sports?

Hour two with Donny Football. The Pirates have an odd ability to lose games and score little to no runs the day after they score 7+ runs. Martin Perez is the most troublesome starter in the rotation. If you were the commissioner of the NBA, NHL, NFL, or MLB what rules would you change or implement? Donny and Austin give their best rules including an MLB salary cap, the end of the NHL's point system.