Originally Posted by loco_loca:
“I always think it is selfish when actors decide to quit the show after a number of years. Two of her colleagues will essentially be jobless because of her.”
Not really

it's not as if Tamwar could be used any less with Zainab gone, his burns storyline stopped existing after Boxing Day and since Afia left, he's been rattling around with the odd line here and there. Masood has spent a few scenes teaching Tiffany and shouting at Syed and Zainab but again, he's been rattling around doing very little.
To be controversial for a moment, Zainab has been such a dominating figure in the Masood household, that all the boys have suffered development wise and they might be taken in new directions with her gone. Masood doesn't have any friends with Jane gone, Tamwar speaks to Fatboy occasionally and Syed used to speak to Janine or Tanya once in a blue moon. It can be argued that Nina has had TOO MUCH attention over the last 3 years ( only the Brannings and Mtchells have had more ) and that Nitin and Hemish might now be given a chance to come forward more.
It was the same with Christian arguably holding Syed back as a character in his own right.
I love Nina and I view Masood and Zainab as one of those couples with great chemistry who should be together forever - sort of - but with her leaving, Nitin might be given more acting to do.