Can Cubs ‘chip away’ at Brewers’ division lead enough to boost front-office aggression at trade deadline?

The Cubs will be buyers at the trade deadline. But as Nico Hoerner pointed out Wednesday, there are different levels of buying and selling. “There’s ‘buyer’ and ‘seller,’” the Cubs’ second baseman said, “but even within that, there’s a bit of a spectrum of aggressiveness that isn’t chosen by the players. But we obviously dictate that by being the best version of ourselves on the field.” Hoerner and his teammates won’t be the ones negotiating trades ahead of the Aug. 3 deadline. But they’ll…