The Seven Deadly Sins story arc was developed with the idea that a mind mage, who called himself the "Puppet Master", was behind all of the goings on. He is kept behind the scenes until the team either stumbles upon him or they link the events together. What I did, when I ran this for my group, was had NewsNet articles that would have little tidbits of information mixed in with a bunch of other unrelated stuff.
They can be played in any order, however, the order in which I present them is the order in which I played them. Some, or most actually, were offered as jobs within a relatively small amount of time and from different Johnsons.