They don't have much cap room, if you look at it objectively. They probably let go of Teddy Bridgewater and Janoris Jenkins, draft a QB and more secondary players, and sign Clowney and bring back Brees for one last hurrah.
I think some credit has to go to @Scott Pennock for Jordan Love... He was talking about the connection of Ballard to Jordan Love well before last season. I believe he had an article, or two, referencing Ballard, and scouts, being at Utah State games for Jordan.
This has the makings of what could be a great Super Bowl. Great offense VS great defense. Lots of top players. 2 teams that haven't been there in awhile. Of course, if we aren't lucky, 1 team may blow out the other team.