They have a relatively imbalanced side because Rodgers has failed to adequately strengthen the areas that needed strengthening. He's spent close to £100 million on 15 players over the two seasons he's been in charge so far. Of those 15 signings, I'd argue only Sturridge, Coutinho and maybe Allen have actually offered anything to the first team, and even then Allen is basically just cover.
Aspas and Assaidi look nowhere near the standard they're after. Borini's got time but I can't see him being there for much longer. The loans of Sahin and Moses have also been completely pointless. I'd consider all of these wasted signings, and all but one are stikers/wingers. Sakho, Toure and Mignolet, whilst playing regularly, haven't improved the team at all, yet account for an outlay of about £30 million. Ilori, Alberto, Yesil and Ibe all have time on their hands, but again, 3 of those are wingers/strikers.
Rodgers has had plenty of money and time to plug the gaps, but he's just stockpiled attacking players rather than spreading the transfer funds across all areas of the pitch. His transfer record currently looks like this: 1 keeper that's been no better than the one they already had; 3 defenders, of which 2 have been shit and 1 has been shipped out on loan; 3 midfielders, of which 1 is cover, 1 regularly plays higher up the pitch and 1 has been a crap loan deal; 8 wingers/strikers, if which 1 has been good, with the rest either being useless or still developing.
There's also the fact that he's constantly harped on about the way they play being "the right way." He's basically built a squad to play the shit or bust style that they have done, so I don't know why you're talking about him strengthening the team properly to play different styles of football as if it's a foregone conclusion.
I don't think the star alignment comments have been particularly unwarranted. There has been a lot that's happened this season that's opened up the opportunity to get where they are. They've done brilliantly to get there, but you can't ignore the contributing factors.
- Fergie retiring, United hiring Moyes, and consequently having an abysmal season essentially opened up a slot in the top 2
- Chelsea again changed managers, as did City, meaning they weren't quite as stable as they maybe could have been
- Everyone expected Liverpool to be challenging for the top 4 at best, and one of their expected rivals, Spurs, lost their best player during the transfer window, spent shit loads on a load of players who have largely not done very much, and then sacked a manager mid-season only to replace him with a P.E. teacher
- Arsenal completely bottled a title challenge, relinquishing another spot in the top 3
- Liverpool had no European games, but all of their title rivals did, with all getting to the knockout stages. One even getting as far as the semi-final. It's ridiculous to suggest that this hasn't gone in their favour because they've basically had no need to rotate and have only played 1 game a week all season
- A plethora of players that everyone thought were actually a bit sub-par have actually had brilliant seasons. Whether they can do the same again with an extra set of fixtures is another matter
- Additionally, they've been massive underdogs. They weren't expected to be anywhere near the title, so they've effectively been able to play every game without worrying too much about their title chances. No one would have batted an eye had they dropped off February/March and finished 4th, and they'd have probably been congratulated on a very good season. As it is, they found themselves close to the title and have subsequently buckled under the pressure of coming close
Next year's going to be a whole different experience for Liverpool. They're going to start the season, not as favourites by any means, but with the expectation of a title challenge weighing over them, which is something they didn't have this season. They're also going to have to play at least 6 extra games, with the probable expectation of playing at least 2 more. Regardless of whether they're going to try and carry on playing as they have been, or adapt to something new, they're going to have to bring in a number of new players to cope with the extra mid-week fixtures. Any new players are going to need time to get used to their new surroundings. If they try and carry on playing as they have been, they might find that teams have sussed them out, and it's no longer an effective tactic. If they try and adapt to something new, it's going to take time for them to get used to that. They're going to have to rely on a number of players replicating the form they've shown this year, which is by no means a foregone conclusion. They're also likely to be facing stronger Chelsea and City sides, with the additional possibility of a resurgent United, a non-bottling Arsenal, a stronger and more confident Everton and a not-so-clueless Spurs.
They're not even completely out of this season's title yet anyway. There's till time for City to out bottle the bottlers.