Signability is not as much of an issue as it was, because every team has a spending cap/pool.
The problem was when teams were allowed to go over "slot" to sign a guy, but the Braves refused to do it. Now, the rules are such that you can't draft some tough sign everyone is scared of in like the 3rd round and offer him a huge signing bonus like the Yankees/Red Sox etc used to do.
This is actually bad for the Braves, as it would be great to use the money we save on BJ these next two years and throw big bonuses at tough signs and international guys, but the rules now prevent that. So, that money just gets added to LM's bottom line!