A season that feels rushed or slack was usually shaped that way long before it was shot. The pacing is set during a planning process that treats a season as a single structure.
The season is mapped before episodes are written
A room typically begins by establishing where the season ends and what has to be true by then. Working backwards from that point produces the major turns the story must pass through.
Those turns are laid out on a board, one card per beat, and rearranged until the sequence holds. The board is the season's shape and it exists before any script does.
Only then are beats grouped into episodes, which is why episode boundaries in serialised drama often feel like divisions of a whole rather than discrete stories.
Episode count constrains everything
A fixed order means a fixed number of containers. A story that naturally needs six turns must be stretched or compressed to fit the episodes commissioned.
Stretching produces the middle stretch where characters restate positions and little changes. Compression produces the opposite problem, where consequences arrive without the time to register.
Each episode is given a job
Rooms usually assign every episode a function, such as raising the stakes, revealing information or shifting an alliance. The function is agreed before the writer assigned to it starts.
This is what keeps a season from drifting when different writers handle different episodes. The individual voice varies but the structural contribution does not.
It also makes rewriting tractable. If a beat moves, the room knows which episodes are affected and what has to be rebalanced around them.
Production realities reshape the plan
Locations, availability and budget all push back. If a major sequence proves impractical, the beat it carried has to be relocated, and the surrounding episodes absorb the change.
Rooms that stay open during filming can adjust as they see footage, tightening a thread that is working and reducing one that is not.
Why pacing complaints cluster in the middle
The opening and closing episodes attract the most attention and the most rewriting, since they carry the audience in and out of the season.
The middle is where the fixed episode count does its damage, because that is where material is added to fill space rather than because the story demanded it.
Shorter orders have reduced but not removed this, since a story built for six episodes and commissioned for eight still has two containers to fill.