Giggs felt everyone involved played an important role in helping United maintain a seven-point lead at the top of the table.
"Everyone is working as a team - we score goals as a team and we defend as a team, and I thought all over the pitch we worked really hard and limited Wigan to very few chances," he told MUTV.
"Chicha and Robin were brilliant today and it wasn't only about their goals. Their work-rate and the way they defended from the front and closed players down made it so much easier for the midfielders to put pressure on their players. They'll get the plaudits for their goals, but their work-rate was also important for us."