"Overall cohesion" refers to the level of unity, togetherness, or connectivity within a group or system. It reflects how well the different parts or members of a group fit together and work towards a common goal. Full definition
We still lacked overall cohesion and fluency, passing was below standard expected at this level and we gave the ball away too cheaply. (westhamway.net)
The acting, direction, cinematography, soundtrack (courtesy of Scottish band Mogwai), and overall cohesion of all its elements truly make it stand apart from almost any other show in recent memory. (metacritic.com)
While we have (and will continue to have, until we can see the final game in action) concerns of how well the studio will be able to manage quest design and overall cohesion between its wider narrative and overworld — something genre veterans still struggle with to this day — the core of the game is just so damned impressive. (gamestm.co.uk)