Every single Atlanta Braves fan wants the Braves to pursue the top players every single offseason. Fans simply want the best players on their team, especially when your team is actually competing for a playoff spot regularly. However, one reason why Atlanta (and other teams) aren't as active at the top of the market as their fans would like has to do with the MLB qualifying offer system.
Basically, teams can give a "qualifying offer" of a set amount (this offseason, it is $22.205 million for one year) to pending free agents. If that player declines that offer, their previous team will get a draft pick when they sign elsewhere and their new team will lose at least one pick with which picks depending on team's payroll status.