Motivational Games and the people who who host them.
As far as your Motivational Team Manager is concerned, you could have a list of incentive games a mile long, but if he isn't the sort of person with the flare to host them, then they won't work! (A bit like when your Dad tries to talk to you about your type of music; it's just not right somehow!)
Also, if the same game is played consistently, then it will become redundant.
I've always found that the trick is to take simple games and perform them well, as opposed to a strong game and make it a cheesy, cringe-worthy, mess!
For example, going on the basis that the main pro's and con's of incentives and motivation are that financial incentives are ususally the best (But not always available), there are always some people that are stronger sellers than others, and thus keep getting the top prizes, and that you reach a certain point in the shift where the odds of reaching the desired target aren't going to happen, thus you mentally give up and try again the next day (Thus not making full use of the final hours calling, say); you need to take a simple premise that combats all these and make it interesting!
One suggestion would be a game I designed to co-incide with the Olympics. I dividied the team up into 2 teams (Calling them Team Russia and Team UK) consisting of strong and not so strong sellers, and set a team prize. At the end of the first hour, the team with the most sales would get to log off and watch me do an Olympic lap around the building whilst the other team had to keep making calls. At the end of the second hour, the team with the most sales in the second hour (Not cumulative otherwise the losing team in the first hour would be at an instant disadvantage and thus give up) would get to log off and watch me try to Olympic long jump the road outside the call centre, etc.
This played to the above weaknesses in that it required no money, yet still gave the agents a common incentive (i.e have a laugh at me!); it was something the weaker agents had a shot at achieving (Because it was team based) and also as the scores were reset at each hour, there was still everyting to play for towards the end of the shift, without throwing in the towel.
I can provide and dream up a host of fun motivational games to overcome the limitaions and difficulties faced (Please contact me if your interested) as the trick is to take something simple and make it work, however, should your man lack flare, then it may not have the desired effect.
And for anyone wondering, I failed to make the jump; but I am in training for the 2004 Olympics, and promise to keep you posted!