Don't give up on him yet! We drafted him as we were transitioning to a 3-4. He had almost 0 help around him. The only person we had that fit the stereotypical 3-4 mold was Hali and he was still getting used to standing up! Dorsey was making the switch from DT, we had a NT by committee, and Derrick Johnson (Our only other solid LB) was in Haley's dog house.
With Hali and Houston now being the focal point of our pass rush I look for Jackson to get much more comfortable. Especially when Powe develops into our NT (he was a steal!) We also have our tackle machine Johnson and our playmaking safety Berry who will be int he backfield a few times.
P.S. To those "omg we need to draft o-line with every pick" phanatics the last 2 years. How did last year turn out for you? We took *gasp* Eric Berry. Doesn't anyone remember when the Chiefs were built on defense alone?! Pre-Vermeil era...