Durham Bus Station, GNE AND ANE...

Been through North Road twice today - this evening, I noticed there were no 20's for over half an hour.
Noticed a 20 arrive just before 16:00, it unloaded up the top, waited, waited a bit more and then pulled into the layover bay at the back.
A 20a had arrived by this point (changes onto the 16.15 x20).
The 16:00 (according to the timetables anyway) didn't run (despite a vehicle being parked up and apparently arriving on time) - which meant the queue of people waiting for an eastbound bus, all piled onto the x20, meaning the waiting vehicle (whichever run it decided to do) and another that had arrived on the meantime, had basically nowt left to carry.

ANE - buses pulling into the bus station this morning onto the correct stand, decided to do so 10mins before the scheduled departure time (going off the DCC timetables and despite the layover bay being empty), which meant other vehicles were forced to use adjoining stands - resulting in a domino effect...
This evening when I arrived into Durham to get my connecting bus, it looked like Armageddon!
Presumably due to a similar issue to this morning, I witnessed a Middlesbrough bound x1, parked in the top stand, rather than 3rd from the bottom!

It kept me entertained whilst standing for my bus anyway, but why does it have to be like that?