Can a familiar give orders to minions of their wizard?

A wizard has a familiar and some other minions. Let’s go with a summoned monster and a non-intelligent undead minion. Can the familiar give commands to these other minions?

Does it matter if the wizard is present? (Like if they get teleported away) Does it matter if the wizard is conscious? Does it matter if the familiar can speak? Does it matter if how the wizard is controlling the undead (create undead vs command undead)?

Any other edge cases one can think of?