It is ridiculous that we haven't signed a CB already after the Merts injury. Gabriel has just made it worse and if we sign a CB now not sure there is really time to bed in and play in the first game of the season. Problem is that Wenger probably thinks that well Monreal can cover at CB and Gibbs is experienced left back to cover for Monreal so not alls lost. With the other CB being Chambers and Bellerin at right back. Not ideal but we have had worst back 4s under Wengers time.
I also don't think we are going to sign a striker, we would have done it by now... its not like we had to wait to sell players to raise the cash. we can buy any player in the world but obviously with arsenal the cliché you have to spend money to make money doesn't really apply.