With the New Zealand Cricket team, the Black Caps, having recently won the Third Test in Barbados, against the West Indies, it reminded me of my own playing days and what goes to making a great team.
One of the things I noticed was that good fielding is infectious. If someone takes responsibility to lift their game, put in 110%, and pull off brilliant saves and catches, suddenly you notice everyone around you lifts their game to the same level.
Of course if people start doing the opposite, everybody's level seems to subconsciously drop accordingly. When I noticed this, I made it my job to be the person who takes the lead and infect the team with good fielding.
The same applies in the workplace. You can be the person that turns up and lifts everybody's performance with your enthusiasm and excellence, or you can be the person who subconsciously allows a gloomy Eeyore to slow you down.