It's possible to extrapolate too much from this single quote.
With "radical theory," Albert argues that there are different spheres of activity to consider -- economic sphere being only one. If you just describe society from the perspective of economics or polity or gender or nationalism, you'll probably suffer from tunnel vision. [1]
Also, efficiency is only one of his economic goals. He lists others, which may trade off with efficiency: solidarity, self-management, diversity and equity.
Further, Albert's measure of efficiency takes into account social costs, the kind which mainstream economists seem to ignore. [2]
Incidentally, he kinda seems to agree with von Mises' arguments, that centralized economies are inefficient. And that for Parecon: "Prices providing accurate estimates of the full social costs and benefits of inputs and outputs are the most important quantitative communicative tools we use." [3]
[1] <http://www.zmag.org/Instructionals/RTInstruc/id29.htm> [2] <http://www.zmag.org/books/pareconv/Chapter3.htm#_VPID_34> [3] <http://www.zmag.org/books/4.htm>
Tayssir
-- Your mileage may vary...