I would certainly suggest Rozee as a better option than Logue as I see him as a more negating type tall defender. You obviously haven't read the news that Wigg has done his ACL and will not play this year. If you have enough cash still, I feel S Collins will be a good bench option.
I don't believe that Smith has any growth in him in 2019 as he won't be given the freedom he enjoyed last year. I've gone with Heeney instead as my F2. Starting with Macrae takes up a heap of cash which leaves you weak elsewhere. I'm banking on him having 1 poor game in the first 8-9 matches whereby he will be available around $150K less. That's when I'll bring him in. Grundy can serve as a likely captain in lieu of him.