It's good to have a positive relationship with coworkers.
John  didn't have a large enough budget to pay for the work product they desired from their workers.
John wanted to get lots of usable data for their project.
John secured a larger budget in order to adequately pay the contractors.
Rather than scaling back their project, John decided to pay the workers less money.
John got great data from the satisfied contractors.
The workers rushed through the work and submitted flawed data to John.