A team's purpose can only be met by the skills within it. A balanced set of skills is the most efficient way to cover your team needs.
A team has task needs. Skills that get the task done. These are usually well defined and easy to identify when recruiting a team; it could be as obvious as selecting by profession or job title.
A team also has team needs. Skills that help maintain the working relationship of the team. These are individual and interpersonal skills that aren't normally advertised or listed on a CV or resume.
A substantial amount of work has been done on team roles i.e., the idea of balancing contributions from individuals to cover team needs. Dr Meredith Belbin has published some of the most notable work on team roles. Belbin has defined 9 main roles that people tend to adopt in their work. A person can operate in any role, of course as humans are multi-talented, but normally one tends to operate (and be most comfortable) working in one/two/three roles. Find out more.
Teams are made up of individuals too, best not to forget this.
one rotten attitude, and your whole barrel is compromised
or more positively,
every person can make a difference to a team.
Start by noticing (your own) attitudes to the following areas:
Do you recognise others abilities, skills and contributions; do you tell them?
Notice and follow up areas that cause confusion or conflict with others.
Work out a plan of actions that can be taken to help identify and provide opportunity to lessen confusion or conflict and make working with others easier.
Remember, there is no panacea, and as each person is individual different techniques will work for different individuals.