Saints Draft LB D’Marco Jackson

in stock market terms, this is purely value and not growth. Best pick for the slot so far. Not a DD type, but maybe a Sam Mills way down the road.
Can you explain to me what a DD type is? It sounds like Jackson has a lot of similarities to Davis coming into the draft. Davis was 6’2 235 and ran 4.49 and Jackson is 6’1 233 at 4.55. Both guys were known for their sideline to sideline speed. And Davis was an OLB as well.