(Time)------------------------------------------------------>
(Resource)-[Network]----[CPU]----[Network]---[CPU]
 Thread 1: Download(A)>Build(A)>Download(C)>Build(C)>...
 Thread 2: Download(B)>Build(B)>Download(D)>Build(D)>...

(Time)------------------------------------------------------>
(Resource)-[Network]---[Network]---[Network]
 Fetch 1: Download(A)>Download(C)>Download(...)>...
 Fetch 2: Download(B)>Download(D)>Download(...)>...
(Resource)-------------[CPU]-------[CPU]--------[CPU]
 Build 1: (Wait)----->Build(A)--->Build(C)----->Build(...)
 Build 2: (Wait)----->Build(B)--->Build(D)----->Build(...)