No. 2 mistake the LA Angels have already made this offseason: Not re-signing Alex Cobb
Alex Cobb was very good for the LA Angels last year, and should have been brought back. He was a 3.76 ERA pitcher who recorded a 2.92 FIP while also posting a 119 ERA+. He's improved each of the past two years, and was a guy who wanted to be back.
Instead of making his wish come true, the club decided to let him go to the Giants, and for a very low price. How he signed a two-year/$20 million deal for a team other than the Angels blows my mind. One of our one-year deals for starting pitching finally worked out, and we decided not to take advantage and bring him back on a cheap deal that he was clearly willing to take.
Sure, Cobb dealt with injuries last year, but came back and was healthy for the end of the season. He's good to go, and we didn't get the job done. Teams like the Giants are building great rotations while the Angels are lagging behind.
The only other move they've made for starters is Michael Lorenzen, who's significantly better in the bullpen anyway.