Avoid major shocks
Dont ask Cutler for scary workout stories. He doesnt have any reminiscences about 30 continuous sets of squats or giant-set circuits that kept him hovering around a trash can, revisiting his protein. He never supersetted bis and tris until he couldnt scratch his own head. He sticks to his training program, and that program has never included all-shock workouts from hell.
Hit the angles
He learned what foot placements will stress various areas of his legs, what grips will best target sections of his upper body, and which exercises are most effective for his particular physique. Then he employs that knowledge to hit each body part from a variety of angles, with a particular emphasis on what he most wants to accentuate.
Where are the photos of a fat Jay Cutler? Where are the shots of a front butt, or a doughy face as round as Charlie Browns? Don't bother Googling. You wont find any. Throughout his pro career, hes always stayed within striking distance of stage shape. Fat is bad for business. Year-round cardio has kept the wrong sort of pounds from sticking, and that, in turn, has allowed him to better monitor his progress and more effectively diet down to excavate the fine lines.
Improvise your training
He has a rough outline for how each workout will progress, but doesn't follow a detailed script. Instead, he analyzes how his muscles are responding and chooses his tools accordingly. Often, he will pause mid-workout so he and his training partner(s) can review how many exercises hes done and what he should do next. Every workout is a work in progress.