Becker has to be first name on the team list for next season. Wouldn't be surprised if he goes elsewhere however as part of his 'development' and every team in the league will be after him so could come down to money.
Douglas is another to pursue as he settled in quite well, had a few bad scores but to be expected.
Schlein i would keep but only if he is to be second string / third heat leader nothing more than that, good captain material.
Nicholls is another to look at from the home perspective, he didn't let us down when was with us early part of season and we sure noticed his absence when Jacob was back. Would only take him as a second string however in terms of team building.
Masters/Thorssell/Howarth - they've had long enough now and won't really get much more out of them, have shown that when needed they don't step up.
Morris - who knows.