Wouldn't worry at all about having 5, I'd say that's very solid. 2nd week of the year after the AO, every team will be stacked with little to no depth at all, even 3 trades & I reckon 90% of teams will struggle to fill 8.
I would have had 7 before two withdrawals, now have 5 with all 3 trades being used. Could have 6, however Sandgren is a must get now.
So i stupidly traded in Halep and made her my captain not realising she had withdrawn from St Petersburg. I also traded out Bouchard because she wasnt on the list for the Taiwan Open but she ended up playing. Despite these poor decisions i have 2 players in the semis (Kasatkina and Lisicki), 1 at Taiwan and 1 at St Petersburg. Lisicki is looking like an inspired pick
Next round im looking at 6/7 players with a top 3 of Dimitrov, Berdych & Tsonga