Now before you guys jump down my throat please read the entire post and hear me through... Also I dont know if we'd sign him but this seemed like something else other than the "this offseason sucks", "trade McNabb(or kolb or vick)" crap that's boring.
So here is some background info before we begin:
Now keep in mind that this is wikipedia. But it basically says that he was the 29th pick in 2005, that he's made some pretty good plays through the year and that he's a decent play-maker. Also he tore up his knee.
Ok, Now why I feel he fits:
Jackson is the type of athlete we go after, one who's a solid tackler, and a solid playmaker. With the likes of Sheldon Brown and Asante Samuels back there he could be the perfect weapon, or for lack of better terms he's the happy medium between the two and could really fit in at FS here. He has the ability to play FS and CB, he isnt really a converted FS, or at least he doesnt play like it.
First off he's a good football player, whenever I watched him play he seemed to be a very good athlete and a good football player. He seemes to get a decent amount of INT's a year and he seems to be a very solid cover guy. And I think the main advantage to him would be that he can tackle. He'd be an instant upgrade over anyone we have at FS.
He has some injury problems which seems to be the reason that the Colts have not resigned him. He is coming off a torn ACL however I believe he suffered it early last year. Other than that I cant really find any real Cons.