Walker was really bad before he got hurt. He started out hot and then was epically bad. He is not on Castros level.
As far as not being able to throw money at it. I agree to a certain extent which is why we have built a top 3 farm system with guys projected for the bigs in 2018. Maybe you missed all the young studs we have.
However, I wish I could save your post for the 2018 free agency season when we sign 3 or four studs to go with our young guys. Let's see how you feel about not being able to throw money at it then.
Walker batted about 440 the month before he got hurt with 7 homers.