Last Flex Spot Help

I’m in a pickle with my 2nd flex position. It’s a half point PPR, 2 RB, 2 WR, 2 flex, 1 TE format and I cant decide who to go with between starting:

RB: Tevin Coleman ATL

or

WR: Devin Funchess CAR

Is Coleman the safer pick or do I go with Funchess?

I’d go wtih Coleman