Things like GoalManager and GoalMaker are to be avoided like the plague. Under the guise of asset allocation, these programs put you into the higher expense ratio, mediocre or worse performing funds. I have always assumed the funds chosen for these programs are the ones that pay the plan the highest fees, not the ones that are best for you. You are on the right track with your approach, given the list of choices. I always picked the best funds offered in the 457 plan (and often had to hold my nose while doing so) and achieved the desired asset allocation by using other accounts.
I do like OAKIX in the actively managed international space. It's a fund of large cap companies in developed economies. Take a look at the hypothetical growth of $10,000 chart over 10 years for that one. There might be a couple of others that are decent, but overall, the indexes are generally better choices in the stinko 401k/403b/457 plans. If you are lacking mid-cap, I like Fidelity's Spartan mid-cap index and it can go in your IRA. (Edit: The Spartan mid-cap index is new, but should perform similar to Vanguard. My experience is with Spartan Extended Market, a mix of small and mid-cap companies.) Their index fund expenses are the same or even lower in some cases than Vanguard. If you want some mid-cap in the 401k, the JP Morgan mid-cap value fund is not bad, just a little expensive.
I would not bother with the high expense ratio government securities fund. DGCIX is a big corporate bond fund. It appears in a lot of these plans. You could do worse.