There was a guy in our gym last year that started right as I was beginning to lean out in prep for my first bb contest in 19 years. I'm not extremely lean year round, so at that point I was rather smooth. This guy was much smaller than me, but was very cut up, wouldn't say ripped, pretty good delts and arms. He did nothing but P90X in the gym. It was a small gym, and he took up all kind of space, and some of the exercises looked ridiculous. Everybody quietly laughed at him sometimes ... one exercise had him standing on one leg bent over, other leg back parallel to the ground and hands out in front, like he was mimicking Superman in flight. He had us dying at times.
He kind of strutted around since he was the most ripped dude in the gym, until I got my bf% down to 3.6% at 4 weeks out, then dropped another 10 lbs plus water, weighed in 213 at 6'1". Then he started asking me what I was doing to get so ripped. Then after my shows, I proceeded to put on 30 lbs in 2 weeks, now up 50 lbs from my contest weight. He doesn't ask for my advice anymore LOL.
Bottom line, if you watch your diet closely, running around in the yard with a sack of flour will net you results. Doesn't take a specialized program, yet some people need motivation and a structured approach to get going