Dead arm shouldn't take a month more, Lester got over it in relatively short order. Show Norris you believe in him and he'll pitch well after he gets over his dead arm phase. Just make sure Gibby has a quick hook.
Probably because Redmond needed to get some work-in and it appears Gibby wants to limit Osuna to 1-2 inning outings. Despite the fact that Redmond only pitched 2 innings Gibby was likely looking for 3-4 innings hence Redmond and Hendricks combined for 4