This is the chief argument for retaining Taylor who filled in as a serviceable Bakhtiari replacement in 2017.
If we assume Jenkins starts at LG and is the OC backup, that effectively makes Taylor a backup for 3 positions in a single injury scenario: LT behind Bakhtiari, LG behind Jenkins, and taking Jenkins spot at OG if he has to move to OC.
It's possible that Jenkins will eventually be the LT backup, as Taylor was in 2017, but I think it is a little much to expect a rookie to learn 3 positions. Of course if they're comfortable with one of the other guys backing up at OC, Jenkins could work at LT. There's a long way to go in sorting it out.
Spriggs will be cut, signed by New England on a cheap one year deal, moved to OG, play meaningful snaps as an injury replacement, prove to be a revelation earning an 80 PFF grade, then sign a nice FA deal to start for somebody at RG where he will disappoint. Just kidding. Sort of.