That is because I am not certain about it. Wenger is a huge admirer or Lloris and in any other year apart from last, we'd have snapped up Lloris the moment he was available for a decent price. But, we clearly did not go for him because we had faith in Szczesny to turn into a top Goalie. At that time, it made me a bit uneasy, but, I was still okay with the call. But, after last season, I am not so sure about Szczesny any more. He is well be very good for his age but he clearly doesn't seem to be good enough for us, at his current level.
The likes of Mignolet and Begovich could have been very good long term solutions based on last season, but, we're again going for someone whose primary virtue is that he won't drive Szczesny away from the club. A goalkeeper has a role to play in the business end of the game and having a top goalkeeper who does not make mistakes and who can pull off great saves is a huge advantage for a team.
If Szczesny doesn't make have a much improved season this year, we'd end up looking like chumps once again.