Francisco Liriano's 2017 ERA progression in one chart

It's been an interesting start to 2017 for Francisco Liriano, in some ways Mark Buehrle's 2013 first half on steroids. After a disasterous debut against the Rays, his ERA sat at an unseemly 135.00. After a third consequence solid start since then last night, totaling four earned runs in 17.1 innings, Liriano has lowered that to a respectable 4.58 ERA. Here's what his 2017 progression looks like in chart form:

That early season spike really distorts the scale, so below is the same chart but with a logarithmic scale instead (and without the background shading to separate starts).

Here the descent looks a lot more gradual, except for the little spike when he allowed a couple runs in his second start.