He's 6'0" which isn't Gabe Davis tall but hardly a shrimp. I agree he'll be in the Davis backup on the outside/slot role as either Beane or McDermott said he'd have it earlier this preseason. Which to me put him around the 4th/5th on the depth chart.
I disagree especially with coordinating. As mostly you're just calling plays. Assistant coaches interact more with their position players more on game day.