I to would pair up Lawson & Cook. Adds a little protection for Cook until he gets his feet under the table. If Cook performs to the levels expected / predicted, after a month or 2, then I'd partner him up with the weakest of the top 5.
A strong 3&4 can be match winning, being partnered together 3 times home & away, individually in heats 12 & 14. It's the engine room of every team.