Why cant we go from where we finished last season to a top four place this season, we have had enough funds to bring in the right players, if those players are not enough then the buck stops with the manager. Arsene Wenger won the League in his first full season after Bruce Rioch and did'nt Carlo Ancelotti win the League and Cup double in his first full season despite finishing behind us the season before when Chelsea were under Scolari and Guus Hiddink, so the answer is yes it can be done with the right manager in charge, it's not as if we are asking for the League Title just a top four place.
While I can't speak for Wenger (because I took very little interest in what was happening at clubs other than LFC in the 90s), Ancellotti won the league with a core of players who had won the EPL and reached the CL final. We, on the other hand, had just finished 7th on the table, and lost two critical members of the team at the start of Kenny's reign (SG and Torres). The player brought in specifically to replace the latter of these has largely failed at LFC - not every signing is going to work out in the first 12 months - and SG remains un-replaced.
It's easy enough to win again with a team of winners, but really very hard to make a handful of changes to a squad of average players and suddenly have them win a league where there are now 6 clubs that play top quality football. The chances of us winning the league this season were remote.
In addition, we've not finished outside the top 4 yet, but we are still very much in the mix. We could be better, but we made a lot of changes (personnel, system [defensive and attacking], management, training), so December is far too early to judge this side. Nothing's decided yet, so try to stay onside. I do think there are some obvious things that could be changed, but that doesn't mean Kenny doesn't know that and doesn't have an alternative (probably better) solution in mind.