Long stories short: you need objectives. Though only if you set them wisely.
Of egos and organizations
Egos can be your doom, just as much as your good fortune. They should thrive in what they do, with no overlap with the rest of the team, nor left-asides.
Organizations are made of humans
Humans have strenghts, and weaknesses. And without a team of humans, your business doesn't exist.
The Product is the Organization
SaaS businesses need to get rid of old paradigms, with organizations consisting in the 4 usual departments. A 5th one needs to grow.
Product Design is not Product Management
You think you have the best product in the world? 6 things can still make it useless and kill your business.