It'll take us a while longer to 'iron out' the wrinkles/kinks in the network. [=to fix the small problems in the network]
Although he won't say exactly what he's working on now, he says he has quite a few 'irons in the fire'.
You had better have a 'cast-iron' [=('US') 'airtight'] excuse for missing the meeting.
(..) To be here now is the only thing that matters. So gather yourselves, gather all of your strength and all of your sweetness into an iron ball. For we will attack again and again. Until we reach and overcome their king, or we die in the attempt! - SOLDIERS: We attack! - Attack! Attack! Attack! (..)2016 TvShow: Vikings Title: The Last Ship Season: 4 Episode 10