I say least likely because Thomas fought long and hard for his big contract as did Sproles. However, in an effort to help the team it’s still possible.
I’ve heard several people asking about linebackers Scott Shanle and Will Herring. It’s pretty much agreed that both of them underperformed with what was expected of them last season.
Shanle is due $1.75 million and Herring $1.3 million this year, so restructuring their contracts wouldn’t even make that much of a dent in the salary cap.
The only scenario where they could help would be to outright release them. Given their performance along with the addition of linebacker Chris Chamberlain and Jonathan Casillas ready to sign his free agent tender, this could be very likely.