Te Pūkenga has announced the departure of its chief executive Peter Winder as it heads for its biggest deficit yet.
A document obtained by RNZ shows it is expecting to lose about $93 million this year thanks to $100 million profit from work-place learning and a $185 million loss from its 16 polytechnics.
It says that's due to plunging enrolments and a skewed funding system. 
Education correspondent John Gerritsen spoke to Charlotte Cook.