Every year since 1998 I've been keeping track of team's "core ages", which I classify as their
keeper list plus their 1st or 1st & 2nd round picks.  Below is this year's edition, also showing
the last 5 years worth of data.  

The 2nd year of a rebuilding Olympia Rainiers take over the youngest core title, jumping up 1 spot to #1.  
The Pirates aged a year but kept their core intact, still a youthful 26.5 years of age.  The Thunder shave 
off a year and jump up 6 spots, while the Rock and Arthropods bounce around the median, dropping 7 spots 
while adding less than a year to each of their cores.  The Termites continue to go with the veteran presence,
holding onto the oldest core for the 3rd year in a row.

Team                2011  Rank    2014    Rank    2015    Rank    2016    Rank    2017    Rank  YearJump
Rainiers            28.6   15     29.3     20     29.1     20     25.3     2      24.8     1       -1
FightinOglethorpes  29.8   21     28.7     16     27.6     13     26.7     6       26      2       -4
AngryCandy          28.1   12     26.4     3      27.1     7      26.6     5      26.1     3       -2
Syndicate           26.6   6      26.5     5      26.5     3      26.5     4      26.4     4       0
Pirates             27.1   8      24.4     1      25.4     1      25.3     1      26.5     5       4
Thunder             27.7   11     26.8     6      26.4     2      27.5     12     26.6     6       -6
Pitbulls            26.2   2      27.9     11     28.4     17     27.2     8      26.7     7       -1
Climbers            28.9   16      28      12     28.7     18     27.7     13      27      8       -5
Mangos               26    1      28.8     17     27.3     11     26.5     3       27      9       6
Pioneers            26.3   3      27.5     8      26.5     4      27.7     14     27.2     10      -4
Moshers             26.8   7      26.9     7      27.8     15     27.9     15     27.5     11      -4
Sluggers             29    17     26.3     2      26.9     6      27.3     9      27.6     12      3
Coneheads           27.4   9      27.8     10     27.3     10     28.3     16     27.7     13      -3
Rock                26.5   5      27.7     9      26.5     5      27.1     7      27.9     14      7
MooseDogs           29.4   20     28.8     19     27.7     14     28.6     19      28      15      -4
Walruses            30.4   24     28.5     13     27.2     8      27.4     11      28      16      5
Arthropods          26.4   4      26.4     4      27.3     9      27.4     10     28.1     17      7
Zeros               27.5   10     28.8     18     27.5     12     28.4     18     28.7     18      0
Piazza's            29.1   19     29.4     21     30.2     23     30.6     22     29.5     19      -3
Organization        29.1   18     31.4     24     29.6     21     30.9     23     29.8     20      -3
Brouhaha            30.1   23     30.5     23     29.8     22      29      20     29.9     21      1
'Topes              28.2   14     29.8     22     28.3     16     29.2     21     29.9     22      1
Malice              28.1   13     28.6     15      29      19     28.4     17     30.3     23      6
Termites            29.9   22     28.6     14     30.5     24     31.6     24     30.5     24      0