Override Single Team Member Content Page

Thanks for your post.

I am not sure what you are planning to customize. but please note you can filter all things on single team member page

Please see the code bellow, you just need to add condition is_singular( 'team_member' ); so that your code will execute only single team member page (this filter hook also work on grid)
https://pickplugins.com/docs/documentation/team/filter-hooks/filters-team_grid_filter_position/

same way you can filter social, skill.

I hope you understand, please let me know if you need more help.

Regards