You're minimizing. He pitched one inning on the last day of the season. On another site it was referred to as his farewell tour which Arizona generously granted. One inning is not encouraging when they didn't even wait to look at him in ST. Walker's injury is unique, and has nothing to do with Pineda or any other player. I would give him no more than a 1% chance of being able to provide 140-160 innings even in 2021, or whatever you so choose to call a normal starter's workload.