Yeah I would say you have a depth need, and like you mentioned, it's nice having trade bait.
My thought is if I was drafting today, I would probably start to look at Jackson in the third round, or about a round after Grant was going. I don't see him being too far off from Grant talent-wise, and he's now going to be the feature back in a great offense, so I like his chances of being productive. McCarthy also said he thinks of Jackson as a 3-down back, so hopefully the job is his to lose.
And yep, he's definitely going into my starting lineup this week. I'm thinking the Packers take an early lead and run with it. (lame pun intended)