The difference between "taking the service" and "leading worship"
"There is a subtle yet profound difference between 'taking the service' and 'leading worship'. The focus on the former is on following the liturgy or order of service. The focus on the latter is on helping people to encounter the presence of God. This is likely to involve an ability to be comfortable with the use of silence to enable people to hear what God is saying to them. Equally the use of testimonies and stories, in which people share experiences of God's action are likely to be evident. A sense of celebration of the reality of the goodness of God will be present. This is likely to be balanced by an ability, corporately, to engage with the pain and brokenness in the world around. So joy and sorrow, laughter and tears will be in evidence."
Robert Warren, The Healthy Churches' Handbook