It wasn't just the pitching. It was a little bit of everything and that falls on the front office. Giant holes with the bats at the catching position, being awful with RISP, losing all of those one run games to the Guardians, somehow keeping Pagan on the roster the entire season, etc.
Let's not forget that Correa was very slow out the gate and then hit .175/.264/.350 in July. Also, he was absolutely pathetic with RISP and 2 outs (.191/.292/.214). He did finish the year strong and showed some strong numbers, but as a fan, this year definitely wasn't worth $30MM to me. I'm also someone who will never like him because he's a cheater and gave some pretty BS answers during that press conference but that's just me.
On to Brooks Lee and Royce Lewis! Those guys are going to be studs