My 2c:
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KevinO said JOC (James O'Connor) should not have been at 10. Perhaps on a wing, but not as a playmaker. He's a ball runner for god's sake.
KB (Kurtley Beale) should not have been out of rehab and in the team. He's going through some series life-altering adjustments and he didn't really need the pressure of a massive test series. The two penalty kicks in the first test summed it up for me. I really did feel for him.
Alexander didn't have a good series and we should have looked for a better THP. Whether it was form or just owned by the Lions props, he was spanked royally. I've been a big fan of his, but for the last few series (spring tour 2012 and the lions series) he has started to regress. Slipper would be my pick for THP.
Palu was clearly not up to a full match and should have been used as a bench player. Mowen and Klimin would have been better choices to start, but then you do run the risk of losing some big-game experience.
I think our preparation was awful too; at least some lead-in test match play would have been good. Soup was never going to be enough preparation work, we needed some decent test match Rugby.
Oh well, since we lost this one it means the Lions will be back in 12 years time. Until then...