Why It's Long Overdue for MLB to Change September Roster Expansion Rules

September is here, and that means two things. First, MLB rosters will expand and a raft of call-ups and newbies will arrive in the big leagues. Second, you'll read articles about how baseball needs to change its September roster expansion rules.

Ahem.

The idea of giving managers fresh meat in the season's final month makes sense. The 162-game grind is long, winding and arduous, and there isn't a club in either league that couldn't use an injection of new blood.

But the present system is deeply flawed.

Don't ask me; ask Doug Melvin, who spelled it out in 2009 while serving as general manager of the Milwaukee Brewers, per Mark Bowman of MLB.com:

You play 80 percent of your season with even rosters…