I'm not sure whether this makes a difference. At the start of your Turn 9, your hand was Tactician, Gold, Silver, Copper (4 cards), your discard pile is empty, and your deck has a Gold and a Silver. You played the Tactician, discarding everything; on Turn 10 you then purchased a Province and a Silver.
If you had not played the Tactician Turn 9 with such a small deck, you could have bought a Gold; your discard pile would now be 2 Golds, Silver, Copper, Tactician. You then draw a Gold and Silver, shuffle your discards and draw 3 cards to end Turn 9. The crux is, you will definitely reach 8 coin and can buy a Province Turn 10. So, by not playing the Tactician, you now have a Gold instead of a Silver, with slightly different shuffling timings.
To bring things back in line, let's say Tactician gets played again on Turn 11. Turn 12 you now have 14 coin, so can buy Gold + Province instead of Saboteur + Province (so where you drew Saboteur, you will now hypothetically draw Gold.) Turn 13 then becomes Province buy instead of Fairgrounds. After that it becomes murky, because your Saboteur milled your opponent's Gold from the top of his deck and it's not clear whether he also speeds up, instead of having to buy Gold on Turns 14 & 15.