Queiroz is very good organizing defensively a team, he did that with Portugal on South Africa 2010 and with Iran.
Why would he play on a different way with Iran?
Football is performance, and results matter.
And why would he work with Mourinho, they don't even like that much each other, even if when Mourinho was student at University Queiroz was his teacher. Fair to say José was the best.
And what is a attack minded assistant? Do you think offensive minded teams don't need to press, be well positioned to recover the ball, know how to defend set pieces, zonal defense and other things?