Whether Samardzija's "ace" material or not, he's a known commodity. They know he's not injury prone, they know what he can do.
Aside from the possibility he didn't want to stay at all, and that wasn't a sure thing, they're going to over-pay for someone, like they did for Jackson apparently.
He might have simply been tired of all the trade rumors, and like me, the seemingly never-ending rebuilding process. Every time they were out of the race, they dumped every bit of talent. You have to keep someone veteran at some point to build around.
If they'd made a serious offer, possibly earlier on, he might have signed a contract.
Aside from the possibility he didn't want to stay at all, and that wasn't a sure thing, they're going to over-pay for someone, like they did for Jackson apparently.
He might have simply been tired of all the trade rumors, and like me, the seemingly never-ending rebuilding process. Every time they were out of the race, they dumped every bit of talent. You have to keep someone veteran at some point to build around.
If they'd made a serious offer, possibly earlier on, he might have signed a contract.