That's a fair point. I feel suitably silly.Who says he won't be here in thirty years? He has said he will be here as long we keep improving, so;
2011/2012 - Win Play-off Final
2012/2013 - Finish 5 from bottom in PL
2013/2014 - Finish comfortably in mid-table
2014/2015 - Finish 6 - qualifying for Europa League
2015/2016 - Lose in semi-final of Europa and finish 4th in PL to qualify for CL
2016/2017 - Lose in Quarter-final of CL and finish 3rd
2017/2018 - Win PL and lose CL Final
2018/2019 - Win double of PL and CL
and so on...
The OP question was hypothetical and this is hypothetically what we could do in the next 7 - 30 years..