Cramer's Stock Picks: Buy Schlumberger and Avnet, Sell Sea and Joby, Prefer Mastercard Over Discover
- Schlumberger is a great company, Cramer likes it very much
- Avnet's stock is too cheap, Cramer thinks investors should hold onto it
- Cramer wants to avoid Sea, says it's too dicey
- Cramer recommends selling Joby Aviation as it's losing money
- Cramer prefers Mastercard over Discover Financial, even though Discover is cheap
