This actually got me digging a little and Nationals might be the only team that has the potential. Their rotation projection:
Scherzer 4.9
Zimmerman 3.7
Strasburg 3.7
Gonzales 2.6
Roark 2.2
Fister 2.0
Jesus that depth. On top they have Giolito waiting in the minors.
It goes to your point that no team has a a replacement but made me realize how much I hate the nationals.