Caulker was sent out on loan for the previous three seasons, but Villas-Boas has shown complete faith in the 20-year-old this year, starting him in Tottenham's last four matches after Younes Kaboul suffered a long-term knee injury.
Former Spurs boss Harry Redknapp was often criticised for an apparent lack of faith in Tottenham's youth products, and Caulker now feels he has a better chance of becoming a first-team regular under his new manager.
"You want to know that if you are playing well and you are training well you will be in the team," Caulker said.
"It's not nice when there are favourites, I think AVB has brought that into the team and I am happy.
"The manager has come in, he's brought a few youngsters in, myself included, and he has pushed a few of us forward. When I came back he said I was in his plans, so I have to trust that and be patient and so far it has worked well."