The LaStella Legacy
It wasn't exactly A Day that Will Live in Infamy, but a year ago today the Cubs traded Tommy LaStella to the Angels for a PTBNL (who turned out to be LHRP Conor Lillis-White).
LaStella was one of the best pinch-hitters in the National League and had one of the best single-seasons of pinch-hitting in Cubs history in 2018 (312/396/416 with 5 2B, 1 HR, 11 RBI, 2 HBP, 9/13 BB/K in 79 PA with an MLB-leading and Cubs single-season club record 24 pinch-hits), and then he hit a robust 295/346/488 with 16 HR in 80 games for LAA this past season (where he was the Angels' everyday 2B for the first half of the campaign, before missing the second half after suffering a broken leg on 7/2).
However, despite trading LaStella, the Cubs did have four of the better pinch-hitters in the National League (including two of the top six) in 2019.
Unfortunately, they also had five of the worst (including - THE - worst), which left them in the bottom third of the league overall in pinch-hitting
Cubs pinch-hitters in 2019 (sorted by PA, minimum 10 PA):
Tony Kemp: 290/421/548 with 1 3B, 2 HR, 7 RBI, 2 HBP, 5/7 BB/K (38 PA combined HOU/CHC)
Daniel Descalso: 065/143/065 with 0 XBH, 1 RBI, 1 SF, 1 SH, 3/12 BB/K (36 PA)
David Bote: 304/407/435 with 3 2B, 4 RBI, 4/7 BB/K (27 PA)
Victor Caratini: 421/522/789 with 1 2B, 2 HR, 7 RBI, 1 HBP, 3/5 BB/K (23 PA)
Albert Almora: 105/190/263 with 1 HR, 2 RBI, 1 HBP, 1/4 BB/K (21 PA)
Mark Zagunis: 176/333/176 with 3 RBI, 4/12 BB/K (21 PA)
Ian Happ: 375/421/813 with 1 2B, 2 HR, 4 RBI, 1 SF, 2/6 BB/K (19 PA)
Kyle Schwarber: 000/143/000 with 2/5 BB/K (14 PA)
Robel Garcia: 111/200/111/000 with 1/6 BB/K (10 PA)
Part of the value of bench players (especially in the N. L.) is the ability to pinch-hit (that is, hit "cold" of the bench), and the Cubs clearly had four guys who did that in 2019.
Of course other elements like positional versatility, defensive skill, and speed are factors in bench construction, too, but having reliable "bats off the bench" who can produce in the late innings can be the difference between winning or losing a close game.
Imagine how things might have been different in 2019 if the "All-American automatic out" that was Daniel Descalso is replaced on the bench by Tommy LaStella.
With the new 26-man roster rule scheduled to go into effect in 2020 (with the 26th man required to be a position-player), N. L. clubs will be better able to carry guys who can hit off the bench even if they don't provide any other value to the club (which is essentially LaStella's profile).