I'm not picking on Smeltzer, or the Dozier trade, or trying to project him to Duensing type career. And obviously Smeltzer only has 27 MLB IP so far, so we're not at a great confidence level with any of these stats.
Just noting the similarities, and pumping the brakes in my head on the thought that he should be a permanent rotation member right now, especially in the postseason.
Here's another stat look, K% vs league SP K%
2009 Duensing 15.3% vs 16.6%
2019 Smeltzer 20.4% vs 21.9%
Same comparison for first AAA season
2007 Duensing 17.8% vs 18.2% (age 24)
2019 Smeltzer 23.1% vs 22.7% (age 23)
Doesn’t have to be permanent.