Technique and strength. One can help shore up the other. Both makes a very good OL. For an OT you need a good punch, feet, agility, strength, balance and hands. I haven't really watched Free this year. I wish someone who knows OL would tell us what the problem is.
Did you know there are only 5000 Snow Leopards in the wild now and they are confined to Central Asia? However, the effective global population (those likely to reproduce) is less than half that number.