Head coach of expansion franchise Philadelphia Union, Peter Nowak, is still striving to make his playing group stronger ahead of their debut MLS season.

The former USA assistant has been given the task of leading a brand new franchise and building a fresh team and is targeting rules and guidelines as the way to keep his new batch of players striving for success.

"We have to figure out how we're going to work and the guidelines and the rules must be very clear for all of them, but I think there is room for suggestions as well," Nowak told mlsnet.com. "This is more about developing the trust and developing the belief that, as a group, we can be stronger."

Nowak admitted that the playing group were coming closer every day and now it was just a case of getting things right on the pitch.

"They're pulling together," Nowak added. "They're playing cards together. They are having fun together. With our help, we're trying to establish the soccer part, which, at the end of the day, is very important to us."