Despite the poor start, Wilkins is certain that the Welsh boss will turn the club's fortunes around if given time.
"When you bring in so many players it is obviously very difficult, especially in defensive areas because a defence needs to play together for a long time to get that understanding in," Wilkins told talkSPORT.
"It's not quite gelling for them. But I am sure with the talent that Mark has that it will come sooner or later.
"If the chairman decides to do what I think he shouldn't do, which is relieve Mark of his post, then the incoming manager might not like half of those players [he bought in the summer]. Now do you spend another fistful of money on replacing those guys? He has trusted Mark with that money and he has to trust Mark now. I am sure will he turn it around. He has got a fantastic staff as well."
QPR travel to The Hawthorns to face West Bromwich Albion on Saturday.