For what it's worth I don't think we'll sell Carroll because I don't think a suitable team will match our asking price. If we do lose one of Skrtel/Agger we'll get a ton for them, which would hopefully strengthen the team massively.
I don't think Downing's as bad as people make out, same with Adam (although I see us using him as part of the Dempsey deal), and Cole's a tough sell to any team because of his wages.
In regards to the other two, we made a public plea to keep Maxi, but he was determined to go back to Argentina. As for Kuyt, it became abundantly clear last season that he was done giving us the sort of performances we required, especially for the level of wages he was on as a senior player.
We'll bring in more attacking options, for sure. If we keep our centre backs I don't see where else we need to strengthen, apart from the front 3, and I believe we will.
There's no evidence to suggest we're doing the bare minimum. In fact there's evidence to the contrary, the latest interview with Rodgers that went up tonight talks about the great length we're going to to identify and close in on our targets, but these things take time. I also don't think there's a player who we've sold which I desperately wanted to keep, for one reason or another; Kuyt and Maxi were done (Maxi is questionable, but he was eager to go home), Bellamy can't play consistently any more (and leaves a space for a new attacking signing that can), and the whole Aquilani saga needed to end, at least now we've freed up our wage bill for much needed contract extensions and new signings.
Honestly I think we're just getting ourselves into a bunch over nothing really, doing a Kyoufu if you will. There's much evidence to suggest we're looking to sign players, it's just these things take time.