I think there are a few factors landed Maroney in the Pats camp instead of the Colts. And they all make sense.
1. The Pats were talking defense, defense. A lot of pundits were convinced they'd draft a LB or DE. Looks like BB pulled one over the Colts.
2. I don't think anyone wanted to help the Colts become BETTER, especially after they created a big hole by letting Edge go. Remember how hard it was for the Pats to deal last year even though they were almost doubled up on picks? Same kind of situation I think. A team is gonna be reluctant to help the good become better unless the trade offer really makes sense to them.
3. I don't think the Colts could afford to move up. If they had packaged a 1st and 2nd or a 1st and 3rd they wouldn't have had the picks to rebuild their defense. And they lost several key defensive players this season in addition to Edge because they had to pay Wayne. (Humm echoes of Branch situation?)
Just look at how they drafted.
1 30 Addai, Joseph RB 5-11 215 Louisiana State
2 62 Jennings, Tim CB 5-8 186 Georgia
3 94 Keiaho, Freddie ILB 5-11 227 San Diego State
5 162 Toudouze, Michael G 6-6 302 Texas Christian
6 199 Johnson, Charlie OT 6-4 304 Oklahoma State
6 207 Bethea, Antoine FS 5-11 203 Howard
7 238 Rushing, T.J. CB 5-10 175 Stanford
The rest of their Day 1 picks are defensive players and I don't see a 4th rounder there although it may have been used to move up somewhere. So IMO teams were asking the Colts for a 1st and 2nd to jump over the Pats or a 1st and 3rd for a smaller move up and they just couldn't/wouldn't pay the price. Not to mention with the other factors I think they were hoping Maroney would drop to them anyways.
Addai was a decent backup plan but he is a reach imo. He's more of an early to middle 2nd round talent. But once Maroney was gone the Colts HAD to jump on Addai.
Well those are the breaks. Besides Maroney looks WAY TIGHTER in Patriots laundry.