Mate, If you were given a team leader role, how can someone be a better leader than you? Are there 2 team leaders? You should be concerned to fail as a leader, and, by failing as a leader and not being as good as your peers, you may (or not) be made redundant, like anyone else in the same situation. Would you make redundant a team member that does not perform? Same rules apply.
Be "named" Team Leader doesn't magically transform you in a true leader. People won't follow you because of your role title, but because they respect your skills and, more important, your attitude.
Be supportive, offer help, remove roadblocks, use your skill and influence to get the job done, be friendly, watch Band of Brothers 3 times (to capture the hundreds of leadership lessons shown there), remember you're not anyone else's boss, don't blame your people (people do make mistakes), don't negatively expose your people, provide constructive (and private) feedback, reward and recognise good behaviour and performance. These are just a few things you need to consider, there are thousands more, but it is a good start.
Remember that as a leader you're accountable for the outcomes of your leadership.
If people make you redundant, so be it mate, one door closes, other opens somewhere else. You carry on, recycle the mistakes, collect more experiences and become a better leader.