For starters I'd get Pocket Awr, Heart, and Leadership all in the 40-50 range for a minimum value. After that I would get Toughness 20-30 so he can withstand some blitzes. Then get Conditioning in the 50-60 range. After all that I would focus on getting Pass Tech into the 80s. Pass Power I am not a fan of going much below 50.
The last three big traits you want to address are Consistency, Accuracy, and Awareness
Pass Consistency I would personally prioritize before Accuracy and Awareness.
Also, I recommend switching his tactics off from scrambling. Moving has a negative impact on Accuracy until you Gold Star On the Run.
“Fate whispers to the warrior, 'You can not withstand the storm.'
The warrior whispers back, 'I am the storm."