I am a huge Cruz supporter and I too see the hypocrisy in Trump hiring Sachs execs, but IMHO, with all the 'leaks' going on I don't think there are a whole lot of people with the experience needed that he feels he can trust and reaching out to people he's known and has dealt with in the past.
Personally, I don't care who he hires, but it does bother me that during the campaign, GS was evil, but now GS is ok. And no one from the Trump camp seems to care about the hypocrisy or be willing to explain the change in position.
It boils down to a lack of integrity and moral character. Granted, Obama and Clinton lowered the bar on integrity and character, but for some of us, those qualities are still important. If Trump truly wanted to be different -- truly "drain the swamp" -- he would do his utmost to maintain a higher degree of integrity. He's not doing so.