Do you want a STR build containment DE?
Start with STR...
Do you want an Evasive Pass rushing DE?
Start with AGI...
Some Evasive DE's start with SPD, but AGI seems to be more important to cap.
The 3 most important attributes are STR, SPD, and AGI.
An Evasive Pass rusher should have them in order of AGI, SPD, STR, with VIS in a close 4th
A STR Containment DE should have them in order of STR, AGI, SPD, TKL/VIS.
For end game it's smart for Evasive DE's to take AGi to 77, then SPD to 77, then STR to 77, VIS to 62 TKL to 62
For end game containment DE's STR to 77 AGI to 74 SPD to 68, TKL to 74 Vis to 62
Evasive SA, Shed Block, Tunnel Vision, First Step
Evasive VA's Jump the Snap, Technique man,
Containment SA's Strong Base, Wall, Shed Block
Containment VA's Pocket Crusher, Bull rusher, Heavy Weight,
Others will chime in and I may have made a mistake or two here, who knows.
Keep reading on the forums and get a better picture of what you want/can achieve.