I think Levein is doing a decent job and this is going to be a very interesting group. Croatia are not as good as they were and Wales are getting better. As a result there is no standout team in the group nor are there any whipping boys. All teams are perfectly capable of taking points off all the other teams and unless one team really comes good then it could go down to the wire with 3 or 4 sides in contention. IMHO this is as good an opportunity for Scotland to qualify for the World Cup as they've had for many years.
Without the distraction of the European Championships there is an opportunity to get a group of players together and work with them to get a real focus. Whilst Scotland are never going to be anywhere near as good as Spain they will have learnt some real lessons from their 2 matches against the World Champions. First is that they have nothing to fear from anybody. Second is that up against good sides you've got to get at them and disrupt their rythmn. Scotland had good spells in both matches and worried them when they got the opportunity to press. But to me, the most important is that they need to understand each other more. The Spaniards almost instinctively knew where their team mates were in their slick passing movements and that can only be acheived with a good understanding of what the team is trying to do collectively and individually. By contrast Scotland were always looking to see where players were to pass to and therefore would dwell too long on the ball and either get caught or end up playing a hurried ball or a pass which was easy to read.
There will no doubt be all sorts of debate in the next couple of years about who the best players are, but to me the key thing is for Levein to decide soon who should be in the squad and then stick with them and mould them into a team. He's fashioned decent sides from ordinary players at club level and If he can do that at international level then I see no reason why Scotland can't earn a trip to Brazil.