I guess I draw the line on tossing starter and reliever roles out the window. I believe there's a different mentality and preparation between starting a game and coming in relief. Otherwise why haven't teams dismissed roles years ago? Now because someone out there was experimenting with data this is now the latest and greatest idea. Also, over the years I thought higher leverage situations happen at the end of games, not the beginning. But now teams are supposed to pitch their shut down reliever in the 1st, when historically it's not crucial to a game.