Top of the list? Every thing I've read, even before Liriano tanked this week, had him like 8th pitcher down. Now some of those pitchers have already been dealt and Hamels re-signed so maybe he's moved up a bit on the list but then again we have less buyers now too. Several trade rumors even talked about him coming out of the bullpen. I think this board is overvaluing Liriano something fierce. Yeah Liriano might put up an ERA around 3 and strike guys out but it's equally likely that he has an ERA around 7. What GM wants that kind of risk when even 1 loss could put you out of the playoffs? It's not like there aren't other pitchers out there who are as good as Liriano AND don't have his apparent downside right now. The true question is what are the asking prices. Nobody is going to pay the same for Liriano as they are for Dempster, Garza or Greinke.
When I said "top of the list", I meant the top 3 guys or so... not necessarily the #1 position. Greinke is struggling. Hamels has re-signed. Those were the two obvious guys at the top going into July. In the second tier, I would slot Sanchez, Dempster, Liriano, Rodriguez. Some have more value than Liriano (Wandy, for example) but also had downside as well (a lot of money owed).
As a rental, there aren't many guys I'd rank higher than Liriano, especially from a pure talent perspective. Now that the Marlins are dealing, Johnson may be added to that list as well. Overall, I think you could make a case for any number of pitchers to be in the #1 slot for various reasons but Liriano should be in that group of guys, especially if he puts together another solid/great start in two days.