I agree with a few of the posts above, I think the cart is before the horse here if someone is simply seeking church as an outlet to play with others in public … Worship teams are there to lead the congregation in their praise and Worship of the Lord, and to give thanks for what we have been given and what was done for us … I have been around a while, and every Worship team I have played with meets early Sunday mornings (or Wed/Thurs evening for mid week services) early enough to pray for each other, and those around us, before anyone even touches an instrument … if one is not a believer, this would be a very awkward time for them, although hopefully they would benefit from it if placed in that situation …
With that said, I have seen straight professional situations, usually very large congregations, where musicians are hired, paid, and are usually very good at their trade … but even then, believers almost always get priority …
I have done well over a couple hundred Worship services at probably 4-5 different facilities (no credit to me, it was my pleasure to give back and a blessing to have the ability, and to be a part of it all), and I was also part of a Christian based original country music group that traveled for large festivals, community events/concerts, and even churches as benefits and fundraisers .. we belonged to the Inspirational Country Music Association (ICMA) with an original CD released …
I only say my experience, to add that I stepped away from playing weekly Worship services, because I had issues in my life which led me to question my ability to be 'right with God', and in a position leading others in pursuit of Him ... the issues are still not completely resolved, and I will not seek a position again until they are, if at all, I am not getting any younger …
JMHO .. as always …
Edit to add: .. I should add, I have also subbed in situations where the Worship leader felt that the bass player they had was struggling in his walk with God … the WL often times will not allow people to partake if they feel they are not prepared to do so ...