A Regge Theory vs Lattice QCD: Understanding Difficulties

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It is very difficult for me to understand that a theory based only in "very logical" and "common sense" assumptions (S-Matrix theory, prestring era) makes (some) valid predictions in non-p QCD, while lattice QCD does not. Could the experts comment on this subjet?

P.S.: Not interested in string theory
 
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Why do you say lattice QCD is not making valid predictions? Could you make the problem more specific?
 
As far as I can tell, this review is not talking about lattice QCD at all (I searched the pdf for "lattice" and skimmed the contents)? Can you point to a specific paragraph or plot you are talking about?
 

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