I've just started the latest upgrade on my stadium, which is going to take forever. I've one builder on it while my other two builders sit idle, doing nothing. Is there any chance we can change this Sweet Nitro by adding more than one builder to a such a large job at least. After all these guys have already taken a lot of game time to get, but then we are basically stopped from using them. Let us, your supporters decide where and when to use them. Thank you for your time reading this, please take the time to answer.

If you manage your building upgrades properly you can have your last three upgrades all finish at about the same time. Sounds like you left your stadium till last. Easilly avoidable so no need for a change.