The new-look Chicago Bulls cap a perfect preseason with a 118-105 win against the Memphis Grizzlies: ‘We just need to keep getting better’

But there are weaknesses to work out, Donovan said, as the Bulls had too many offensive possessions in which they weren’t flowing, sometimes affecting their defense. The team was running well offensively and took good shots that didn’t fall, then started pressing, Donovan said.