As Snoop says, there will be, ups and downs, smiles and frowns as your players perform above expectations or slump their asses off. It's important to know when to hold on to your player and not sell at a discount and on the other hand when a player won't be able to keep his streak going and try to swap him for another player with more fantasy value in his future.

I'll share with you, fairy tales or make believe about players too hot or too cold to stay that way and who you should be looking to trade or to trade for at this time. Below are my Week 12 fantasy basketball buy low and sell high candidates.

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Buy Low, Sell High Advice for Week 11

Are You for Real, Marcus Smart?

Marcus Smart is playing 30 minutes a night this season. That's a lot for a player who is a back up to none other than Isaiah Thomas. And recently he has been getting even more run because Avery Bradley got injured. In his last three games with Avery out, Smart has played 35 minutes per game. And he's been good!

His averages over his last four games are stellar. He is scoring 15.3 points with 2.0 threes on 45.5% from the field and he hasn't missed any of his 13 free throws in that period and has now hit 26 in a row. He is also grabbing 3.8 rebounds, dishing out 5.8 dimes, getting his owners 1.8 steals and 1.0 blocks per game while turning the ball over 2.3 times in the aforementioned period. That's top-30 value during the last seven days of action. Now, while you could expect his steals and rebounds to stick around those numbers, it's hard to imagine Smart keeping up those percentages with his career averages being 36.1 FG% and 73.2 FT%.

Furthermore, a dip in his assists, points and blocks is inevitable when Bradley returns. He didn't travel with the team for tonight's (Jan. 13) game against Atlanta, but is expected to play in Boston's next game vs. Charlotte on Jan. 16.

Now Smart is only owned in two out of three leagues, but if he is on your team you should be looking to deal him while he's riding this hot streak. If you can get a top-80 player in return that would be a good deal in my book. Depending on your league's settings and your and other owner's needs you could be able to get someone like Darren Collison, Thaddeus Young or our buy low target for this week, Evan Fournier. Smart will probably have decent value, but won't be this good the rest of the way so my advice is to use this window of his hotness.

Baller Move: Sell high

Time to Panic on Evan Fournier?

Evan Fournier had a heel injury which kept him out five games in late December and early January. He's back now but hasn't been himself since the injury with averages of 12.8 PTS with 1.0 3PM on 37.3 FG% and 69.2 FT%, 4.3 REB, 2.0 AST, 1.0 STL, 2.5 TO and no blocks in his four games back.

Now while the rebounds are higher than usual and the steals and assists with no blocks are on par with what to expect from Fournier his shooting has been well below his average. He is a career 44.7 FG% and 79.4 FT% shooter and he's been even better from the line this season hitting 83.1% of his free throws. So we should be looking for Evan to pick it up in the next period and return his shooting to the standard that has him playing 33 minutes per game for Orlando since the beginning of the season. When he does that he will again be a top-100 player in standard leagues. Let's not forget, he is still Orlando's best three point shooter and scorer.

You should be looking to offer someone outside of top-100 for Fournier since you're looking to buy low because he is in a slump. And even when he's not, he is still not worth giving up too valuable an asset. An offer of someone like Marcus Morris or try to use the hotness of Montrezl Harrell or the hero of our sell high story Marcus Smart to get Fournier. On the other hand, if you are the one who owns Fournier, I advise patience.

Baller Move: Hold or buy low