It mostly isn't his fault right now....the hitters aren't hitting, and the bullpen is unbelievably bad. He's not without fault, but people are saying he should be fired after this game....so, sure, people are blaming him for the offense not scoring more than 3 runs, again. I'm still waiting for the FO to develop some players.....
Also....again....he has no / few good options in the pen right now.....at some point, they have to be able to get the number 9 hitter out...and that's on them and the FO, not him.
I have no interest in Rooker....he won't even come close to Sano's production, and not Kepler's either (esp. if you factor in defense). Lanarch? He should be up in a month, give or take. It's not like he's 19 years old.....
To be clear, you think you'd have to package Sano and Kepler to get 1 good RP? Also, you might want to look at power and walks, and not just BA.....because every team does when assessing players' value.
Almost no SS prospects would work, as far as I can tell. They are mostly in the majors, not touchable, or play for lower revenue teams. ATL and LAA have very good CF prospects, of course, they also have good/awesome CF......so, not sure that works.