They did have a chance to take the lead early on, but Morgan Lovell fluffed an easy penalty shot and it was one-way traffic towards the Keys' line after that.
But it was by no means one-way traffic, and a powerful Leeds drive took them to within yards of the Bradford line before Diskin snuck over from a play-the-ball at close range on 25 minutes.
The highly automated factory, to pick only one example, can out-compete any assembly line in the world that runs the old-fashioned way, even if its workers are plugging in widgets and tightening bolts for 30 cents an hour.
The home side began to build pressure - largely through the Chiefs poor kicking - but they spilled the ball in one foray and Exeter worked it wide to Rennie who weaved his way to the line.