Letting these guys go and then filling these holes just seems like a lateral move at best, ensuring another 7-9/8-8 season OR WORSE. Starks is better than any replacement would be, so letting him go means our run defense will be worse. Jake Long is still better than every OL we have other than Pouncey. Our OLine gets worse when he goes. If we get Greg Jennings but lose Hartline then we really only make a marginal net improvement for the 2013 season until the rookies we draft learn how to play NFL WR, and that's assuming that they're not typical Ireland busts. If Hartline walks then we need TWO (2) Quality FA WRs to come in, and one of them better be a STUD!
With the number of FAs we have and Jeff Ireland at the controls I have a hard time seeing us being a more talented football team as of August 2013.