If you want to be the "bigger man" work the wire, make some trades and win anyway. You don't really have much of a choice to be honest.
This. Might be more possible than you think at the moment. How much does a redraft Opening Day roster churn over the course of a season, anyway? Proabably 2/3 of the guys drafted are replaced by playoff time.
A few factors may work for or against you:
-
Size of league -- a 16-team league could make the second-best of your three QBs (or one of your WRs) valuable to another owner dealing with injuries at the position. In a 10-teamer ... eh, the QB thing probably won't work unless someone is forced by circumstances into starting garbage at QB early in the season.
-
Positional requirements -- OK, you go into Week One with only Melvin Gordon (hope he gets right by then). Is it a flex-type league where you can start one RB and three WRs, say? If so, you can string it out a week or two until you can pick up (or overbid) on 2019's breakout RB. Also, if you can pick up & drop players between now and Week One ... you gotta be Johnny-on-the-spot and jump all over any RB that emerges in preseason due to injury.
-
Quality of other positions -- Are you positively stacked at QB and WR? OK at TE? Got better-than-replacement D and K? Every little edge helps. Sounds likely, unless you luck into 2019's out-of-nowhere stud, that you'll be dragging at RB all season. But teams can succeed even with a deficiency at one position if the other ones are strong enough.
-
Trade culture in your league -- In some leagues, team managers move guys all the time as part of the fun of fantasy sports. In other leagues, no one makes a trade for fear of losing the deal down the road. The more internal player churn your league generates, the better your chances of making chicken salad via trade (as opposed to waivers/free agency only).
-
Waiver/free agency pick-up rules -- is there a significant fist-come-first-serve period in your league where you can get the jump on other owners? In some leagues, this is right after waivers run say on Tuesday or Wednesday evening and lasts until first kickoff Sunday. In other leagues, waivers run late, and there really isn't an extended period of time where you can easily catch other owners flat-footed. Accordingly, you might have to gaze harder into your crystal ball and take blind stabs at players in good positions to emerge, but haven't had that one good stat week yet that puts them on everybody's radar.