Tavarez as a starter: 4.91ERA, 1.43WHIP
Tavarez as a reliever: 4.71ERA, 1.60WHIP
Other than the fantastic groundball/flyball rate as a starter (29 to 2), his numbers when out of the pen aren't significantly different than when hes a starter, and outside of the one start against Chicago the numbers are a lot worse. If hes really good for the rest of the month then they should let him fight for the 5th starter spot in ST, otherwise he should be kept in the pen as the longman or emergency 6th starter.