It's not just the playcalling, this is the obvious best OL combination the Giants had, and a lot of fans have been calling for it since training camp.
Flowers is Flowers he's been playing a bit better.
Jerry has always been better at LG but played at RG because Pugh was better suited at LG.
Jones is undersized but so is Richburg, Jones doesn't move anyone but tends not to get pushed back as much as Richburg does.
Fluker isn't great in pass protection, but is a load in the run game
Pugh is the best player on the oline, and is competent at RT.