This is how my workout routine suggests I split my workouts.

Day 1 - Chest and Triceps
Day 2 - Back and Traps
Day 3 - Quads and Calves
Day 4 - OFF
Day 5 - Shoulders and Biceps
Day 6 - Deadlift and Hamstrings
Day 7 - OFF

The full workout routine is here:

Does anyone see a reason I would need a day off between quads/calves and shoulders/biceps? It seems like I could just do this straight through M-F and be giving each muscle group adequate rest. Any thoughts?