Getting a keeper and future investment in free performance enhancing drugs - very smart
Not sure if Marinovic is a better option than Sail, but we'll find out soon.
Marinovic has played dozens of games in leagues better than a-league, where Sail has only played as back up. He has also looked class for All Whites. Imo Marinovic is clearly a better option.
That doesn't mean he's the better keeper, it means he's been given more chances (and, to be honest, has failed more times than succeeded)
Having two kiwis battle it out for the #1 spot seems like a good move, though.