That's something that the players have to address amongst themselves. Here's my take on the situation:
While I understand not bringing back Freddie and Dansby, the consequence of that was losing a LOT of clubhouse leadership. Those guys had been through the rebuild, came through the winning seasons but postseason disappointments, then capped it all off with a WS. They understood what it took. In the process of letting them walk, AA decided to compensate by getting a great 1B in Olson, doubled down and got a great catcher in Murphy, attempted to fix LF with Kelenic, and went internally for SS with Arcia. There's only one problem with those solutions though: everybody you traded for came from a losing organization. You brought perennial losers in (not dissing the players, just making a statement about their team situations) and tried to make them winners from Day 1. Now, instead of showcasing urgency when the division started slipping during the dog days of summer, you had guys just sleepwalk through it all and expect to win because it's the Braves, we always win the division and make the postseason. AA replaced the talent, but he never replaced the player leadership. IMO, THAT'S what's different about this team. It's why I think missing out on Nola was a much bigger miss than people realize. He has the pedigree and the talent. He's been there. He knows what it takes.
AA needs to find guys this offseason who have been there and knows what it takes.