Define productivity. A previous colleague at my company rushed out a load of new code in 3 months, then left the company. What a steaming pile of crap he left

Define productivity. A previous colleague at my company rushed out a load of new code in 3 months, then left the company. What a steaming pile of crap he left us. After nearly a year and a half we have had our first week without support requests related to this. This guy wrote order of magnitude more code than the others on the team, but we have spent many more hours cleaning up the crap he left.