Sheard:


Colts signed DE/OLB Jabaal Sheard, formerly of the Patriots, to a three-year, $25.5 million contract with $12.75 guaranteed.
Sheard is not an especially dynamic pass rusher, but he is a solid all-around edge presence and was the top edge player left on the free agent market. Turning 28 in May, Sheard has 13 sacks and four forced fumbles over the past two seasons. He did lose his starting job in New England last year, but remained part of the rotation and finished strong. At present, Sheard and John Simon would project as the Colts' two starting 3-4 outside linebackers.
http://www.rotoworld.com/headlines/n...D:topheadlines

Simon:

Colts signed OLB John Simon, formerly of the Texans, to a three-year, $13.5 million contract.
Unlike ex-GM Ryan Grigson, new shot-caller Chris Ballard is taking an economical approach to free agency. He took a flier on Barkevious Mingo and now adds Simon, a player many around the Texans believe is on the rise. Simon is short at 6'1/260, but he's stout against the run and flashed pass-rush juice with 26 hurries on 516 snaps last season. We'll see if he can do it without guys like Jadeveon Clowney, J.J. Watt, and Whitney Mercilus getting all the attention. Simon figures to be a direct replacement for free agent Erik Walden.
http://www.rotoworld.com/player/nfl/8547/john-simon

I like both of these signings.

So far Colts have signed Mingo, Locke, Sheard, Simon.