I think both will continue to better.
But I will put my money on Randy, cos there is no strong no.2 WR in Minnesota, compared to Torry Holt having Issac Bruce behind him. Also with Marshall Faulk back in the mix, he will steal some TD from the WRs, in this case Holt.
Moss is a 100 yard and 1 TD guarenteed for the rest of the season.
Holt might match it, but no guarentee.