the crowd continues jeering

"Titvs, it is not a matter of discipline, rather it is a matter of logistics; would supplies be able to reach us? would it reach us on time? there are a myriad of problems in logistics.
Also, isn't 'the loss of two legions' the same as 'the loss of two legions we have'? two legions are all we have, together with some levies and militia"