I don't think its Lowry not trust his team mates so much as Lowry trying to find his role on this team. The team needs him to be a threat he needs to look off his team mates to establish that. He was brought here to score and to beat people off the dribble. I think he is doing a good job get people there shots.
The one thing this TEAM needs to do, is to give Jonas opportunity score, there is genuine lack of trust in the rookie abilities to finish at the rim. He has to be give opportunities even if they end failure, The guy is working his ass off trying sell the pick and role and seldom gets the ball. That will to run it with determination is going to die.