Peter Wright: "The front five and the backs are pretty decent, but the back-row is the one that surprised me. When I look at it, the balance doesn't look great.
"I think we've got a very strong potential starting 15, I just worry in the forwards if we've got guys on the bench that can change the game against Samoa or even America."
John Beattie: "He's trying to pick a squad of fundamentally big forwards and attacking backs.
"He's been very brave, he's done away with tradition. He's brought in Hardie, who we had never really heard of until very recently, so he's picked players he thinks can do a job no matter where they were born."
Scars from a Six Nations whitewashItaly stunned Scotland at Murrayfield in this year's Six Nations
After an encouraging Autumn Test series in 2014, many felt Scotland under Cotter were ready to shake things up in 2015 and, if not quite win the title, at least have a major say in who did.
So are the scars of a Six Nations whitewash still raw, or have the bad memories been consigned to history?
CP: "I think they'll have learned from it undoubtedly, because it is quite a young group, but it'll be towards the back of their minds because there has been so much rugby played since then.
|Scotland's World Cup record|
|2011: Pool stage|
"In club rugby Glasgow went on to win the championship as we know and Edinburgh went on to compete in the final of the European Challenge Cup, and that was all before the World Cup preparation and games. So there's been a lot of time and a lot of rugby time passed since then, but they'll learn certainly from the Irish game."
PW: "The one worry with the players at international level is they don't know how to win tight games, and there's every chance there are going to be tight games in this tournament. Some of the Glasgow guys have experience of winning, which is great and will help, but it's winning in the blue jersey that a lot of the guys lack.
JB: "Scotland were still on their way to being organised (during the Six Nations). In the World Cup warm-up games you can see there's a lot more organisation.
"If I was in that squad I'd be a little bit happy thinking we might just come in under the radar. Nobody expects anything of Scotland but we're organised and fit for the first time."
What would be a successful World Cup?Scotland narrowly lost the 1991 World Cup semi-final to England
At the 2011 tournament, Andy Robinson's side became the first Scotland team to be eliminated at the pool stage following defeats to Argentina and England.
So what is a realistic aim this time around?
JB: "First success is getting out of the pool. Second success is getting past the quarter-finals, which would be extraordinary given where we are.
"There are measures of success for this team and the main one would be 'can they get by the quarter-finals?'. That would be an astonishing success."
PW: "Getting into the quarter-finals and having a crack at either England, Australia, Wales or Fiji - I think that would constitute success.
"If we get to that knockout stage, if Scotland have still got all their top players available, I think whoever we get will be worried about us. Not getting out of the group for the second World Cup in a row would be a complete and utter failure in my opinion."
CP: "Scotland, if they play to their potential, have the ability to get out the group, but it's hard. There will be upsets along the way."
Scotland's key manFinn Russell has flourished in the number 10 role for Scotland
JB: Willem Nel - "Where Scotland fall down, where we've always come off second best for the past 30 years is in set-piece. If you have a tighthead prop who can hold your side of the scrum up, then you have won a watch. If he plays well the team plays well. He could be the man."
PW: Josh Strauss - "If Strauss fronts up and performs at international level the way he can do at club level, I think he could be the guy to take Scotland into the quarter-finals. He's robust, very physical, a good ball-carrier."
CP: Finn Russell - "Previous World Cups haven't involved a lot of rugby. If it follows the trend then I think decision-making is the ultimate, and you can't look any further than your half-backs for decision-making purposes. Whoever is in that 9-10 axis will be making the big decisions."