I was curious about great 3B players so I went to check on a few to see how they aged and whether the four year contract for Josh Donaldson was really a good deal for both team and player. What are the potentials for regret? I cannot predict injuries or aging, but this list makes me feel better and optimistic.

Mike Schmidt ages 34 - 37 hit HRs to almost match his age 36,33,37,35 and then he was really done dropping off to 12 and 6. His WAR was 7,.5, 6.2, 6.1,and then 1.8, -0.4

Another great 3B and my favorite was Eddie Mathews. A wonderful HOF player. He hit 32 at age 33 and then dropped to 16, 32, 3. His career was over by age 38.

Ken Boyer, a near HOF peaked at age 32 and never had another power year.

Scott Rolen, being debated for HOF and getting lots of credit as a 3B candidate hit 22, 20, 5 and 8 and then was done at 38

George Brett was not a HR hitter, but in his age 34 - 37 seasons his WAR was 2.7, 4.1 and then he finished out his last three years with WARS of less that 0,5.

Baseball Reference in it list of comparable players at age 33 listed only one 3B - Dave Hollins who dropped out at age 33 with BA, HR and all other stats. Not a good one there, although he had been good.

Those are my best comparable players. The biggest thing I saw in this exercise really demonstrated that the Twins might have grabbed the best four years and would be wise not to extend it further.