I'd agree, Austin and myler isn't a partnership I'd relish. Suppose it depends which way you want to see it, the advantage may be in the morale boost given to those with improved contracts and those behind, it may have been in distribution of the cap where there's greater need if a prop were to be found and it may have also solved some disharmony with Gale being ousted (he can wobble as we know). I cant see how the 3 of them would have fit in the 13 and I'd have been dissapointed if that would have been at the cost of Smith.
All ifs and buts, the one thing I feel we know is that Sezer and Austin is the best of the options we had even when Gale was here.
Though valid to note, McGuire, Burrow and Sinfield became a bit more flexible as a 3 with (Burrow and Sinfield possible at 9 and Sinfield 13). Gale, Austin and Sezer don't provide anything like that or varied enough skill sets.