Friedel, 41, feels signs are positive the former Porto boss can be a success second time around in the Barclays Premier League.
"You can only take people on what you see, and from what I have seen he is a very ambitious manager, he is very organised and training has been very sharp," Friedel said on TalkSPORT.
"He has let us know he wants to come here to win things, so in the first couple of days, everything looks very good."
The American continued: "The club did a very good job of going out to get someone very ambitious.
"There are also a lot of great staff members behind the scenes here who stayed on, so there is still that Tottenham base.
"This is all positive and our fans should be excited for the upcoming season."