In 1997-98, the great Dion Dublin found the back of the net 18 times for Coventry, accounting for 39.1% of the Sky Blues' goals that season. The total tied him atop the league charts along with Liverpool's own, Michael Owen, and Chris Sutton. He was then bought by Villa in the summer transfer window for £5.75.
The season after he left, Coventry struggled, scoring 7 less goals overall and finishing 15th. They tried replacing Dublin with John Aloisi, who at that time was a 22-year-old striker coming off an impressive campaign at First Division (which was the equivalent of the Championship back then) Portsmouth. The Australian failed to fill Dublin's boots and eventually led to the club being relegated in 2001.
The next season, Jimmy Floyd Hasselbaink and Mickey Owen both scored 18 to lead the league. Hasselbaink played for Leeds at that time and unsatisfactory contract offers forced him to put in a transfer request during the summer of 1999. He was sold to Athletico Madrid where he had a stellar season, scoring 24 goals in 34 La Liga matches.
Leeds didn't miss him though, despite the 27-year-old Dutchman being responsible for 29% of their goals, they actually went up a spot on the table to 3rd. The remarkable thing is they garnered 69 points, 2 more than they did during Hasselbaink's final season, despite scoring 4 less goals and allowing 9 more. An Australian lad by the name of Kewell stepped up and filled the gap scoring 10 and (unofficially) assisting on another 13 in league play.
Finally, just two seasons ago, Robin Van Persie betrayed the Arsenal faithful, selling his soul to the Red Devils. The 30 goals he scored in his final season at the London club lead the league and accounted for 40.5% of the Gunner's total. The following season Arsenal finished a spot lower at 4th despite accumulating three more points. Their goals scored only dropped by 2, while they held their opponents to 12 less. If Liverpool would do the latter this season, they have a good chance of winning the league, even if they score 20 goals less.
What about non-league leading scorers who were significant contributors to their club the season before leaving:
year | player | prev club | goals | club | pct | place | after |
94-95 | L. Ferdinand | QPR | 24 | 61 | 39.34% | 8th | 19th |
S. Collymore | Nott Forest | 22 | 72 | 30.56% | 3rd | 9th | |
J. Klinnsman | Tottenham | 21 | 66 | 31.82% | 7th | 8th | |
98-99 | N. Anelka | Arsenal | 17 | 59 | 28.81% | 2nd | 2nd |
05-06 | Van Nistelroy | Man U | 21 | 72 | 29.17% | 2nd | 1st |
06-07 | Mark Viduka | Mids'boro | 14 | 44 | 31.82% | 12th | 13th |
Darrent Bent | Charlton | 13 | 34 | 38.24% | 19th | 11th* | |
08-09 | C. Ronaldo | Man U | 18 | 68 | 26.47% | 1st | 2nd |
11-12 | C. Dempsey | Fulham | 18 | 68 | 26.47% | 9th | 12th |
Yakubu | Blackburn | 17 | 48 | 35.42% | 19th | 17th* | |
12-13 | Gareth Bale | Tottenham | 21 | 66 | 31.82% | 5th | 6th |
R. Lukaku | WBA (loan) | 17 | 53 | 32.08% | 8th | 17th | |
Demba Ba | Newcastle | 15 | 45 | 33.33% | 16th | 10th |
One thing that can be derived is that 'major' clubs take the loss of a significant attacking player much better than 'mid-table' or 'smaller' sides. That gives hope to Liverpool, though only twice has a club increased their finishing place on the table. Leeds in 2000-01, as mentioned above, and in 2006-07 when Mangoloid U won the league after the loss of Van Nistelroy. Another thing that should be pointed out is none of the clubs mentioned in this post featured the second leading league scorer from the previous season, whereas Liverpool have Daniel Sturridge.