How aggressive the diet needs to be at the start depends highly on the person. For a guy that has a large amount of fat, cycling my be one option. My goal is to have someone eat the most food they can consume and still continue to get lean, and with enough time, eventually get rippped. The more food they are able to eat, the more muscle they can continue to grow while dieting. I would consider carb cycling to be too aggressive of a plan for someone that is already leaner or has a fast metabolism. They can lose fat but may also not come in with the same fullness and size. You may actually have unneeded losses instead of coming in full, round and ripped.
For most people, I would start out with a straight pro/carb/fat. From there, we will evaluate how they respond and then deciding how to move forward from there.