I don't know what evidence could possibly exist that would satisfy you. I find it more than passing strange that Sal and company spent up to their budget but didn't spend into the extra allocation. I think it more reasonable to conclude that Sal stopped, because he had spent all he was allowed to spend and that if he had another $2.8 mill he was allowed to spend, that he could also have spent that.as well. This strikes me of the argument often thrown up at me that we didn't exceed Selig's recommended slots, because our scouts were simply unable to find anybody worth the extra $. Impossible to conclusively disprove, but it certainly strains credulity.
Why go back in time? I guess because I'm still not at all sure how much this aspect of the Phillies organization/philosophy has actually changed. Many of the same owners, including Middleton, were present at both times. Middleton grew up under Giles/Monty. Other than accepting the stats guys, not yet clear evidence of a change in what we spend on and how much we spend. MacPhail and Klentak are new.
We actually exceeded allocation more (as far as we can tell) once under the old regime (for Ortiz) than we have yet to do under the new regime. We bought allocation this year, but all allocations (and all supposition on this forum) are that we didn't buy a lot of allocation.
I realize that we all want to believe that Middleton/MacPhail/Klentak are the magic saviors who have stripped away the old Phillies philosophy and will do whatever is needed to return us to the WS with all practicable speed, but... to me a very strong farm is a key part of that and on this point I see scant definitive evidence of change, apart from the increased focus upon the stat guys.
I do believe that Middleton would go over the lux cap, at least briefly, to maintain a winning core and that he would not have forced RAJ to trade Lee after the Halladay signing for a one-year budget balance. Being out front on amateur bonuses? No sign of that. Gillick was the most forward on amateur bonuses, both in a draft and I think he was a key voice on the Ortiz signing.