My thoughts on the rookies (<160k and chances of playing) this week...
DEF
Kosi (159k) - I assume everyone already has him, nothing to suggest he's worth trading in over other options if you don't, was really solid on the weekend though.
Highmore (117k) - Assume most traded him out for Chapman a couple of weeks ago, making him a very viable target if he gets named. Webster injury opens a spot and he's shown the ability to score well. JS will remain on the lower end though but I think he probably plays this week and even with all that is probably a top 3 rookie option.
Jones (140k) - Picked up a couple of knocks so will need to pull up from those, think he's the #1 rookie option this week in terms of JS and scoring potential, role is strong and he's done everything right in both a tough and easy game and clearly offers them something extra to a few of the other guys they have.
Mansell (102k) - He's been alright. Role is actually pretty decent but JS is not strong and a bad game would have him out pretty quick. Personally think he's behind Jones and Highmore as targets this week.
Prior - He played really well in the wet, I actually liked his debut as well but the coaches didn't obviously. JS is poor, role has been fairly decent (HF) and he's got some serious traits (good size and left boot). Reminds me a bit of Crisp or Maynard in size/style but he's very raw. Again, think that Highmore and Jones would be ahead of him if both fit and picked.
Parks - Believe he's hurt (not on injury report) and that's why he missed but unfortunately Williamson took the chance last week and played quite well so tough to get back in straight away.
Wont bother with the 1 weekers here, plenty of 2 week options so no reason to gamble.
Mids
Lazzaro (152k) - Subbed out with a hamstring issue this week and has only got to this point in 5 weeks, you'd want to be desperate.
Bruhn/Sharp - Don't expect either back this week but who knows. Neither showed much as targets anyway.
Macrae (126k) - Looks the pick of the midfield options this week so would mean going early. Between Laird and Dunkley/Martin everyone should have links to the other positions so really not a lot of reasons that you'd need to go early on him but he's the best of the midfield bunch if you are.
Ruck
Hunter (134k)- Expect he's done with both Marshall and Ryder likely to be back.
Sweet (124k)- Actually was really impressed by his game, admittedly against no rucks, but expect they go with Martin still even if I'd like to see more of Sweet.
Campbell (155k) - Not worth it as the backup ruck with marginal JS, imo, unless you're truly desperate as he's probably the only one who will be playing.
Treacy (102k) - I'm personally hoping he doesn't play as I want him but not this week! DPP is his real value and I think I prefer as a forward personally for flexibility. JS and scoring both look to be pretty bad but he's definitely the pick of the 102k options and a decent option to free up cash.
FWD
Waterman (148k) - I didn't really like him as a 102k option because the 27 of this week seemed a likely result sooner rather than later (soonest it would turn out) but I guess if you're truly desperate he might be in play still.
Bergman (159k) - JS seems to be increasing by the week as other guys get injured and banged up, be a big effort for Hartlett to get up this week, imo, and Houston would have to be in doubt also. He played well and his role is very good. JS is going to be an issue in such a strong side but he's got some ability. Wouldn't shock me if he scored a 90 soon.
McCreery (117k) - I don't like his role but he's played it very well the first two games. Tackling his real standout trait and always a good one to have in a team that could only be described as marshmallow soft the last few weeks. Similar to Waterman for mine where a 30 type score seems very plausible and anything much beyond his scoring seems somewhat of a stretch but his JS is better than most and he's cheap.
Stone (144k) - Pity he's expensive, really like what he does but his JS can only be described as poor with so many stars out injured. Is one of the guys playing a wing and high HF ahead of Kelly and he does some really good things with his limited touches. One of those guys who you'd wish was more involved if he played for your team. Another that wouldn't shock me if he knocked out a 90 this week (maybe not this week against the Dogs but soon). The Dogs matchup not a good one though as could push him out of the team with a bad game. I think his JS and price kind of trump his natural scoring look that he has, basically Bergman for 15k more offers both of those at the same or higher level and better JS prospects right now and McCreery has more job security and playing is the single best way to have a chance of making cash but he's that one that almost no one will pick that could be the "why didn't we grab him?" guy in a few weeks.
Treacy - See above, honestly still might like him the most outside Bergman in this group and most would have Bergman given he was one of the stronger starting options and the best downgrade option by a fair chunk last week for anyone who didn't start him, so that leaves Treacy and his flexibility as a very strong case.