But that is just it! We don't know what's going on! Your posted suggests you believe what's been printed!
Warne's comments about last January was that he was trying to sign players that were "better than what he had" but maybe he should have signed a couple to add depth to the squad to provide options even if they were no better than existing players.
So your disappointed that unverified media reports suggest the club is going to sign players? mm.
Warne has been reported as having players in mind, he also caveated that by saying getting a deal over the line is a different matter, not sure he definitely said he would sign players though no doubt he wants to.
Indeed his last remarks as printed in the DET "We are so close with a couple and I am really confident that we will get at least two in. At the top end of the pitch is where we need it. Until all the boxes are ticked you just can't make it happen. That's the truth."
They might have had months to identify targets and prepare bids, but things change over time - a player comes into form and either the club now wants to keep him or clubs in a higher division and able to pay higher wages and/or transfer fees are now interested. Or a club has injuries and wants to keep the target player as back up, there are all sorts of reasons as to why a deal for a target player doesn't happen no matter how much preparation is done.
It is odd why many deals seem only to happen towards the end of the transfer window, but again there are a number of factors that can come into play, a player and/or his agent may wait before accepting an offer hoping a another club will come in. A club may not release a player until they have signed a replacement or a player eventually signed was no 4 on the list and the club failed to sign the previous 3.
Its not just some of Warne's signings that have had injury or form issues!! A number of players that were here before him have been injured or failed to perform as well as might be expected.