We don't know how much truth there is in this report!
Firstly, we were told by Martin that players had to leave before a signings could be made. Dhanda, Fulton (and possibly Pato) could have left and free up room for incomings. In the end Dhanda, Pato and Fulton stayed so no funds were freed up for incomings! Walsh then left on loan and Martin secured his incoming left wing back. Exactly what Martin said would happen did happen! Outs before Ins!
Other reports (if true!) show the owners are financially savvy but no accepting a low bid for
Reports also state that Fulton rejected deals at Blackpool and Barnsley - if he'd have gone for a fee (or even a free) I've no doubt this frees up enough funds for the owners to keep their word on incomings.
I'm sure Martin may be frustrated but I suspect he's bright enough to understand the owners did what they promised! He may be pissed off about 'investment' but we've spent money on transfers/wages to support Martin with Pire, Fisher, Ogbeta, Downes, Obefemi etc. This is significant investment in comparison to other championship clubs.