There are two mainstays on the Kansas City Chiefs offensive line and those are LT Eric Fisher and LG Ben Grubbs. Those two have consistently been the first team players at their positions without any rotating in and out (save the occasional look at Donald Stephenson at LT). Fisher and Grubbs are almost assuredly your starters at those positions.
It's every other spot on the offensive line that's a concern. The Chiefs have position battles at center, right guard and right tackle and they have begun to mix it up with various offensive line combinations. Chiefs Digest discusses some of those recent changes here. Let's look at the options.
LT Eric Fisher, LG Ben Grubbs, C Eric Kush, RG Jeff Allen, RT Donald Stephenson
This is the line we've seen the most (so far). Starting in OTAs and up until just a few days ago, this was the first team offensive line.
Pros: Kush has already been taking the most first team reps this offseason ... We (think we) know what Allen and Stephenson can do.
Cons: Who is the swing tackle? Jeff Allen? ... Fulton's development could be affected going from starter to non-starter ... Your second round pick is on the bench.
LT Eric Fisher, LG Ben Grubbs, C Mitch Morse, RG Zach Fulton, RT Jeff Allen
"This group seems to be working well together," Reid said of this combination. "We're happy with it so far."
Pros: Stephenson would be a great swing tackle ... Your rookie center would get a chance to play immediately ... Another year of development for a cheap player in Fulton.
Cons: Hard to see how Stephenson doesn't have a spot after he was one of their best linemen in 2013 ... The Chiefs spent the offseason giving Kush all those first team reps and now he's not starting ... Allen is probably a better guard than Fulton.