I actually agree with the auction values on Tulo for what it is worth, he is being drafted too early. Considering it bunches him in with a bunch of $35 players I think taking him 1st out of that bunch at pick #8 is a very reasonable place for him. I don't see any reason to think he has more value than Cano though, positional scarcity of SS just isn't that much bigger than 2B in leagues with a MI slot and Cano has a healthier track record and has just been better so far in his career.
I think C are rated a bit too high in the action listing though, Santana in the 2nd round is just a horrible pick. Early C are a pure downside move, they just get hurt too often and the limited games makes it really hard for them to break out into a 1st round value. McCann is about where it is reasonable to start considering a C.