I would probably spend the next 5 levels (the 5 skill points your have included) in getting your main attributes to the soft cap.
I'd go so far as to put your current 5 points into agility to get that to the soft cap.
Level 27: put 5 into speed.
Level 28: 5 into Tackling or Vision
Level 29: 5 into Tackling or Vision (whichever one you didn't boost the prior level)
Level 30: finish getting whatever skills are not at the soft cap - if anything is left over boost an SA - or place them in Stamina.
Train confidence the rest of the season.
I'm not sold on spending 2 skill points to boost an attribute that's passed the first skill cap - so I'll let someone else suggest that. LBs are dependent on so many attributes - it's hard for me to say it would be wise to throw away points into anything - just yet...
After that - SA the hell out of your run defense ability tree.
Some may believe in tackling/vision over agility/speed for an MLB - but I think Strength/Tackling/Vision/Speed/Agility are so important for any position a linebacker may play.
yea, hes definitely not gonna have a problem takling too many people, problem is actually getting to the ball carrier. i would get agility to the soft cap, then vision, then speed. your takling should be fine for quite a while with all that strength