There are several important things you should be doing. I'm not sure whether any one thing is the single most important thing, but it would probably be doing all you can to maintain your Action and Sales VP so that you keep that ranking of team leadership and not fall back. Of course that requires consistent daily logging in and doing all the daily, weekly and monthly actions as well as sponsoring PSAs, PRMs and ECAs, and buying from TripleClicks yourself.
You should also maintain your leadership page and correspond with your team regularly to guide and motivate them.
As a team leader you need to set the example for your team to follow. The team provides you with the power of duplication, so they must see you doing what you expect of them, if you want them to duplicate your efforts.
I won't say 'good luck' because it doesn't depend on luck, but on consistent persevering hard work on your part to be a successful team leader. You will reap the rewards of your effort.
There are several important things you should be doing. I'm not sure whether any one thing is the single most important thing, but it would probably be doing all you can to maintain your Action and Sales VP so that you keep that ranking of team leadership and not fall back. Of course that requires consistent daily logging in and doing all the daily, weekly and monthly actions as well as sponsoring PSAs, PRMs and ECAs, and buying from TripleClicks yourself.