I think we're definitely in a stronger position than in 13/14.
If we look at the table, we have the 5th best defence in the league amongst the top 10 (tied with United and Everton, both still to play this round), but the best attack by some distance (+3 on City, 4 on Chelsea and 7 on Arsenal). Crucially, though, we haven't dropped any points due to defensive failures. We've failed to win 4 games, and only in 1 one of those did we drop points for being unable to defend our lead. That was Spurs away, which is understandable. It wasn't really a mistake from our defence anyway, and if anything our new keeper might have saved that. We also conceded 3 goals in games where we were in full control: Leicester, Hull and Watford. Only the Leicester game has a small claim of being dodgy for a few minutes there, but even then it was a bizarre brain fart rather than a structural problem.
We're not going to have the best defensive record in the league, but we are roaming around the top 6 for goals conceded and that's with at least a couple of them coming in games where we had a 3/4 goal lead at home. With a new keeper just settling in, we should improve on that record provided we stay injury-free at the back.