Sometimes it's best to pick the only 1 or 2 401k funds that match some part of your desired asset allocation, and adjust elsewhere as needed. All too often an S&P 500 fund is the only one with a low-ish fee, but at least that's going to part of most people's desired asset allocation.
What are your choices and the respective fees?
Thanks for the response! That makes sense.
The fund I was looking into is AGTHX (0.64% ER, bleh, but better than 0.79% for AAMTX - the 2055 TDF). I'm basically just looking to mimic my Vanguard AA close as possible until I leave my current employer and can do a rollover. ABNDX for bonds is 0.61% if I wanted it but I'd also consider going 100% equities with American Funds - I've been reading a lot of JL Collins' blogs lately, which is what prompted me to re-allocate from the Vanguard TDF. :)
There might also be another fund other than AGTHX that would work, but that's the one that stands out to me between performance & ER.
So I guess the question would be AAMTX @ 0.79 vs AGTHX @ 0.64. I'm leaning towards AGTHX but only if that is doing what I think it's doing of getting me closer to my Vanguard AA if there's not another American Funds option that I overlooked.