Modern day development teams can learn a lot from our history. For instance, the Three (or Four) Musketeers: One for all and all for one!
This brings the scrum model of a unified team into principle that everyone is here together and the team in indivisible, i.e. together in one unit. Teams should practice “gemba” or swarming when a project runs into an impediment and the project manager (or scrum master, if involved) should be right there assisting the team however is needed.