I'd prefer Shaq over JO - and as long as there isn't anything else to use the MLE on - I'd rather go full MLE on Shaq then a partial MLE on JO.
However I do think there will be a bunch of players available either later in the offseaon or during the regular season. So I think JO at half the MLE, probably means we can add a decent 8th* man during the season.
* I'm assuming an eventual healthy lineup, where if we sign JO for half MLE, then we trade Sheed for wing
Perk / JO
KG / Baby
Pierce / Wing
Allen / Allen +
Rondo / Nate +
* AB, Harangody, and Erden as the long bench
+ Ideally we keep both of these guys on one or two year contracts, their salaries might be needed for matching deal at some point