Most likely he's just working on building arm strength and finding location. I wouldn't be too concerned just yet. Now if his first few starts of the season are rocky, then there would be a reason for concern.
Yes doctor, I am sick.
Sick of those who are spineless.
Sick of those who feel self-entitled.
Sick of those who are hypocrites.
Yes doctor, an army is forming.
Yes doctor, there will be a war.
Yes doctor, there will be blood.....